Probably fix by singleton

class-form.php

<?php
namespace um\core;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if ( ! class_exists( 'um\core\Form' ) ) {

	/**
	 * Class Form
	 * @package um\core
	 */
	class Form {

		/**
		 * @var
		 */
		public $form_data;

		public $form_suffix = null;

		/**
		 * @var
		 */
		public $form_id;

		/**
		 * @var
		 */
		public $form_status;

		/**
		 * @var null
		 */
		public $post_form = null;

		/**
		 * @var null
		 */
		public $nonce = null;

		/**
		 * @var null|array
		 */
		public $errors = null;

		/**
		 * @var null
		 */
		public $processing = null;

		/**
		 * @var array
		 */
		public $all_fields = array();

		/**
		 * Whitelisted usermeta that can be stored when UM Form is submitted.
		 *
		 * @since 2.6.7
		 *
		 * @var array
		 */
		public $usermeta_whitelist = array();

		public function hooks() {
			add_action( 'template_redirect', array( &$this, 'form_init' ), 2 );
			add_action( 'init', array( &$this, 'field_declare' ), 10 );
		}

		/**
		 *
		 */
		public function ajax_muted_action() {
			UM()->check_ajax_nonce();

			// phpcs:disable WordPress.Security.NonceVerification
			if ( ! isset( $_REQUEST['hook'] ) ) {
				die( esc_html__( 'Invalid hook', 'ultimate-member' ) );
			}

			if ( isset( $_REQUEST['user_id'] ) ) {
				$user_id = absint( $_REQUEST['user_id'] );
			}
			if ( ! isset( $user_id ) || ! UM()->roles()->um_current_user_can( 'edit', $user_id ) ) {
				die( esc_html__( 'You can not edit this user.', 'ultimate-member' ) );
			}

			$hook = sanitize_key( $_REQUEST['hook'] );
			/**
			 * Fires on AJAX muted action.
			 *
			 * @since 1.3.x
			 * @hook  um_run_ajax_function__{$hook}
			 *
			 * @param {array} $request Request.
			 *
			 * @example <caption>Make any custom action on AJAX muted action.</caption>
			 * function my_run_ajax_function( $request ) {
			 *     // your code here
			 * }
			 * add_action( 'um_run_ajax_function__{$hook}', 'my_run_ajax_function', 10, 1 );
			 */
			do_action( "um_run_ajax_function__{$hook}", $_REQUEST );
			// phpcs:enable WordPress.Security.NonceVerification
		}

		/**
		 *
		 */
		public function ajax_select_options() {
			UM()->check_ajax_nonce();

			$arr_options           = array();
			$arr_options['status'] = 'success';
			$arr_options['post']   = $_POST;

			// Callback validation
			if ( empty( $_POST['child_callback'] ) ) {
				$arr_options['status']  = 'error';
				$arr_options['message'] = __( 'Wrong callback.', 'ultimate-member' );

				wp_send_json( $arr_options );
			}

			$ajax_source_func = sanitize_text_field( $_POST['child_callback'] );

			if ( ! function_exists( $ajax_source_func ) ) {
				$arr_options['status']  = 'error';
				$arr_options['message'] = __( 'Wrong callback.', 'ultimate-member' );

				wp_send_json( $arr_options );
			}

			$allowed_callbacks = UM()->options()->get( 'allowed_choice_callbacks' );

			if ( empty( $allowed_callbacks ) ) {
				$arr_options['status']  = 'error';
				$arr_options['message'] = __( 'This is not possible for security reasons.', 'ultimate-member' );
				wp_send_json( $arr_options );
			}

			$allowed_callbacks = array_map( 'rtrim', explode( "\n", wp_unslash( $allowed_callbacks ) ) );

			if ( ! in_array( $ajax_source_func, $allowed_callbacks, true ) ) {
				$arr_options['status']  = 'error';
				$arr_options['message'] = __( 'This is not possible for security reasons.', 'ultimate-member' );

				wp_send_json( $arr_options );
			}

			if ( UM()->fields()->is_source_blacklisted( $ajax_source_func ) ) {
				$arr_options['status']  = 'error';
				$arr_options['message'] = __( 'This is not possible for security reasons.', 'ultimate-member' );

				wp_send_json( $arr_options );
			}

			if ( isset( $_POST['form_id'] ) ) {
				UM()->fields()->set_id = absint( $_POST['form_id'] );
			}
			UM()->fields()->set_mode  = 'profile';
			$form_fields              = UM()->fields()->get_fields();
			$arr_options['fields']    = $form_fields;

			if ( isset( $arr_options['post']['members_directory'] ) && 'yes' === $arr_options['post']['members_directory'] ) {
				global $wpdb;

				$values_array = $wpdb->get_col(
					$wpdb->prepare(
						"SELECT DISTINCT meta_value
						FROM $wpdb->usermeta
						WHERE meta_key = %s AND
							  meta_value != ''",
						$arr_options['post']['child_name']
					)
				);

				if ( ! empty( $values_array ) ) {
					$parent_dropdown = isset( $arr_options['field']['parent_dropdown_relationship'] ) ? $arr_options['field']['parent_dropdown_relationship'] : '';
					$arr_options['items'] = call_user_func( $ajax_source_func, $parent_dropdown );

					if ( array_keys( $arr_options['items'] ) !== range( 0, count( $arr_options['items'] ) - 1 ) ) {
						// array with dropdown items is associative
						$arr_options['items'] = array_intersect_key( array_map( 'trim', $arr_options['items'] ), array_flip( $values_array ) );
					} else {
						// array with dropdown items has sequential numeric keys, starting from 0 and there are intersected values with $values_array
						$arr_options['items'] = array_intersect( $arr_options['items'], $values_array );
					}
				} else {
					$arr_options['items'] = array();
				}

				wp_send_json( $arr_options );
			} else {
				/**
				 * UM hook
				 *
				 * @type filter
				 * @title um_ajax_select_options__debug_mode
				 * @description Activate debug mode for AJAX select options
				 * @input_vars
				 * [{"var":"$debug_mode","type":"bool","desc":"Enable Debug mode"}]
				 * @change_log
				 * ["Since: 2.0"]
				 * @usage
				 * <?php add_filter( 'um_ajax_select_options__debug_mode', 'function_name', 10, 1 ); ?>
				 * @example
				 * <?php
				 * add_filter( 'um_ajax_select_options__debug_mode', 'my_ajax_select_options__debug_mode', 10, 1 );
				 * function my_ajax_select_options__debug_mode( $debug_mode ) {
				 *     // your code here
				 *     return $debug_mode;
				 * }
				 * ?>
				 */
				$debug = apply_filters( 'um_ajax_select_options__debug_mode', false );
				if ( $debug ) {
					$arr_options['debug'] = array(
						$_POST,
						$form_fields,
					);
				}

				if ( ! empty( $_POST['child_callback'] ) && isset( $form_fields[ $_POST['child_name'] ] ) ) {
					// If the requested callback function is added in the form or added in the field option, execute it with call_user_func.
					if ( isset( $form_fields[ $_POST['child_name'] ]['custom_dropdown_options_source'] ) &&
						! empty( $form_fields[ $_POST['child_name'] ]['custom_dropdown_options_source'] ) &&
						$form_fields[ $_POST['child_name'] ]['custom_dropdown_options_source'] === $ajax_source_func ) {

						$arr_options['field'] = $form_fields[ $_POST['child_name'] ];

						$arr_options['items'] = call_user_func( $ajax_source_func, $arr_options['field']['parent_dropdown_relationship'] );
					} else {
						$arr_options['status']  = 'error';
						$arr_options['message'] = __( 'This is not possible for security reasons.', 'ultimate-member' );
					}
				}

				wp_send_json( $arr_options );
			}
		}


		/**
		 * Count the form errors.
		 * @return integer
		 */
		public function count_errors() {
			$errors = $this->errors;

			if ( $errors && is_array( $errors ) ) {
				return count( $errors );
			}

			return 0;
		}


		/**
		 * Appends field errors
		 *
		 * @param string $key
		 * @param string $error
		 */
		public function add_error( $key, $error ) {
			if ( ! isset( $this->errors[ $key ] ) ) {
				/**
				 * UM hook
				 *
				 * @type filter
				 * @title um_submit_form_error
				 * @description Change error text on submit form
				 * @input_vars
				 * [{"var":"$error","type":"string","desc":"Error String"},
				 * {"var":"$key","type":"string","desc":"Error Key"}]
				 * @change_log
				 * ["Since: 2.0"]
				 * @usage
				 * <?php add_filter( 'um_submit_form_error', 'function_name', 10, 2 ); ?>
				 * @example
				 * <?php
				 * add_filter( 'um_submit_form_error', 'my_submit_form_error', 10, 2 );
				 * function my_submit_form_error( $error, $key ) {
				 *     // your code here
				 *     return $error;
				 * }
				 * ?>
				 */
				$this->errors[ $key ] = apply_filters( 'um_submit_form_error', $error, $key );
			}
		}

		/**
		 * Appends field notices
		 * @param string $key
		 * @param string $notice
		 */
		public function add_notice( $key, $notice ) {
			if ( ! isset( $this->notices[ $key ] ) ) {
				/**
				 * UM hook
				 *
				 * @type filter
				 * @title um_submit_form_notice
				 * @description Change notice text on submit form
				 * @input_vars
				 * [{"var":"$notice","type":"string","desc":"notice String"},
				 * {"var":"$key","type":"string","desc":"notice Key"}]
				 * @change_log
				 * ["Since: 2.0"]
				 * @usage
				 * <?php add_filter( 'um_submit_form_notice', 'function_name', 10, 2 ); ?>
				 * @example
				 * <?php
				 * add_filter( 'um_submit_form_notice', 'my_submit_form_notice', 10, 2 );
				 * function my_submit_form_notice( $notice, $key ) {
				 *     // your code here
				 *     return $notice;
				 * }
				 * ?>
				 */
				$this->notices[ $key ] = apply_filters( 'um_submit_form_notice', $notice, $key );
			}
		}


		/**
		 * If a form has errors
		 *
		 * @param  string  $key
		 * @return boolean
		 */
		public function has_error( $key ) {
			if ( isset( $this->errors[ $key ] ) ) {
				return true;
			}
			return false;
		}


		/**
		 * If a form has notices/info
		 *
		 * @param  string  $key
		 * @return boolean
		 */
		public function has_notice( $key ) {
			if ( isset( $this->notices[ $key ] ) ) {
				return true;
			}
			return false;
		}


		/**
		 * Return the errors as a WordPress Error object
		 *
		 * @return \WP_Error
		 */
		function get_wp_error() {
			$wp_error = new \WP_Error();
			if ( $this->count_errors() > 0 ) {
				foreach ( $this->errors as $key => $value ) {
					$wp_error->add( $key, $value );
				}
			}
			return $wp_error;
		}


		/**
		 * Declare all fields
		 */
		public function field_declare() {
			if ( isset( UM()->builtin()->custom_fields ) ) {
				$this->all_fields = UM()->builtin()->custom_fields;
			} else {
				$this->all_fields = null;
			}
		}

		/**
		 * Remove banned wp_usermeta keys from submitted data.
		 *
		 * @since 2.6.5
		 * @param array $submitted
		 * @return array
		 */
		public function clean_submitted_data( $submitted ) {
			foreach ( $submitted as $metakey => $value ) {
				if ( UM()->user()->is_metakey_banned( $metakey/*, 'submission'*/ ) ) {
					unset( $submitted[ $metakey ] );
				}
			}

			return $submitted;
		}

		/**
		 * Validate form on submit
		 */
		public function form_init() {
			if ( isset( $_SERVER['REQUEST_METHOD'] ) ) {
				$http_post = ( 'POST' === $_SERVER['REQUEST_METHOD'] );
			} else {
				$http_post = 'POST';
			}
			// Handles Register, Profile and Login forms.
			if ( $http_post && ! is_admin() && isset( $_POST['form_id'] ) && is_numeric( $_POST['form_id'] ) ) {

				$this->form_id = absint( $_POST['form_id'] );
				if ( 'um_form' !== get_post_type( $this->form_id ) ) {
					return;
				}

				$this->form_status = get_post_status( $this->form_id );
				if ( 'publish' !== $this->form_status ) {
					return;
				}

				// Verified that form_id is right and UM form is published. Then get form data.

				$this->form_data = UM()->query()->post_data( $this->form_id );

				// Checking the form custom fields. Form without custom fields is invalid.
				if ( ! array_key_exists( 'mode', $this->form_data ) ) {
					return;
				}

				// Checking the form custom fields. Form without custom fields is invalid.
				if ( ! array_key_exists( 'custom_fields', $this->form_data ) ) {
					return;
				}

				$custom_fields = maybe_unserialize( $this->form_data['custom_fields'] );
				if ( ! is_array( $custom_fields ) || empty( $custom_fields ) ) {
					return;
				}

				$ignore_keys = array();

				$field_types_without_metakey = UM()->builtin()->get_fields_without_metakey();
				foreach ( $custom_fields as $cf_k => $cf_data ) {
					if ( ! array_key_exists( 'type', $cf_data ) || in_array( $cf_data['type'], $field_types_without_metakey, true ) ) {
						unset( $custom_fields[ $cf_k ] );
					}

					if ( array_key_exists( 'type', $cf_data ) && 'password' === $cf_data['type'] ) {
						$ignore_keys[] = $cf_k;
						$ignore_keys[] = 'confirm_' . $cf_k;
					}

					if ( 'profile' === $this->form_data['mode'] ) {
						if ( ! empty( $cf_data['edit_forbidden'] ) ) {
							$ignore_keys[] = $cf_k;
						}

						if ( ! um_can_edit_field( $cf_data ) || ! um_can_view_field( $cf_data ) ) {
							$ignore_keys[] = $cf_k;
						}
					}

					if ( ! array_key_exists( 'metakey', $cf_data ) || empty( $cf_data['metakey'] ) ) {
						unset( $custom_fields[ $cf_k ] );
					}

					if ( isset( $cf_data['required_opt'] ) ) {
						$opt = $cf_data['required_opt'];
						if ( UM()->options()->get( $opt[0] ) !== $opt[1] ) {
							$ignore_keys[] = $cf_k;
						}
					}
				}
				$cf_metakeys     = array_column( $custom_fields, 'metakey' );
				$all_cf_metakeys = $cf_metakeys;

				// The '_um_last_login' cannot be updated through UM form.
				$cf_metakeys = array_values( array_diff( $cf_metakeys, array( 'role_select', 'role_radio', 'role', '_um_last_login', 'user_pass', 'user_password', 'confirm_user_password' ) ) );
				if ( ! empty( $ignore_keys ) ) {
					$cf_metakeys = array_values( array_diff( $cf_metakeys, $ignore_keys ) );
				}
				// Remove restricted fields when edit profile.
				if ( 'profile' === $this->form_data['mode'] ) {
					// Column names from wp_users table.
					$cf_metakeys = array_values( array_diff( $cf_metakeys, array( 'user_login' ) ) );
					// Hidden for edit fields
					$cf_metakeys = array_values( array_diff( $cf_metakeys, UM()->fields()->get_restricted_fields_for_edit() ) );

					$cf_metakeys[] = 'profile_photo';
					$cf_metakeys[] = 'cover_photo';

					if ( ! empty( $this->form_data['use_custom_settings'] ) && ! empty( $this->form_data['show_bio'] ) ) {
						$cf_metakeys[] = UM()->profile()->get_show_bio_key( $this->form_data );
					} else {
						if ( UM()->options()->get( 'profile_show_bio' ) ) {
							$cf_metakeys[] = UM()->profile()->get_show_bio_key( $this->form_data );
						}
					}
				}
				// Add required usermeta for register.
				if ( 'register' === $this->form_data['mode'] ) {
					$cf_metakeys[] = 'form_id';
					$cf_metakeys[] = 'timestamp';
				}

				/**
				 * Filters whitelisted usermeta keys that can be stored inside DB after UM Form submission.
				 *
				 * @param {array} $whitelisted_metakeys Whitelisted usermeta keys.
				 * @param {array} $form_data            UM form data.
				 *
				 * @return {array} Whitelisted usermeta keys.
				 *
				 * @since 2.6.7
				 * @hook um_whitelisted_metakeys
				 *
				 * @example <caption>Extends whitelisted usermeta keys.</caption>
				 * function my_um_whitelisted_metakeys( $metakeys, $form_data ) {
				 *     $metakeys[] = 'some_key';
				 *     return $metakeys;
				 * }
				 * add_filter( 'um_whitelisted_metakeys', 'my_um_whitelisted_metakeys', 10, 2 );
				 */
				$cf_metakeys = apply_filters( 'um_whitelisted_metakeys', $cf_metakeys, $this->form_data );

				// Important variable to prevent save unnecessary data to wp_usermeta.
				$this->usermeta_whitelist = $cf_metakeys;

				/**
				 * Fires before UM login, registration or profile form submission.
				 *
				 * @since 1.3.x
				 * @hook um_before_submit_form_post
				 *
				 * @param {array}  $post $_POST submission array. Deprecated since 2.0.
				 * @param {object} $this UM()->form() class instance. Since 2.6.7
				 *
				 * @example <caption>Make any custom action before UM login, registration or profile form submission.</caption>
				 * function my_custom_before_submit_form_post( $um_form_obj ) {
				 *     // your code here
				 * }
				 * add_action( 'um_before_submit_form_post', 'my_custom_before_submit_form_post' );
				 */
				do_action( 'um_before_submit_form_post', $this );

				/* save entire form as global */
				/**
				 * Filters $_POST submitted data by the UM login, registration or profile form.
				 *
				 * @param {array} $_post Submitted data. Already un-slashed by `wp_unslash()`.
				 *
				 * @return {array} Submitted data.
				 *
				 * @since 1.3.x
				 * @hook um_submit_post_form
				 *
				 * @example <caption>Extends $_POST data.</caption>
				 * function my_submit_post_form( $_post ) {
				 *     $_post['some_key'] = 'some value';
				 *     return $_post;
				 * }
				 * add_filter( 'um_submit_post_form', 'my_submit_post_form' );
				 */
				$this->post_form = apply_filters( 'um_submit_post_form', wp_unslash( $_POST ) );

				// Validate form submission by honeypot.
				if ( isset( $this->post_form[ UM()->honeypot ] ) && '' !== $this->post_form[ UM()->honeypot ] ) {
					// High level escape if hacking.
					wp_die( esc_html__( 'Hello, spam bot!', 'ultimate-member' ) );
				}

				$this->post_form = $this->beautify( $this->post_form );

				// Validate and filter 'role' submitted data to avoid handling roles with admin privileges.
				// Remove role from post_form at first if role ! empty and there aren't custom fields with role name
				$maybe_set_default_role = true;
				if ( array_key_exists( 'role', $this->post_form ) ) {
					if ( 'login' === $this->form_data['mode'] ) {
						unset( $this->post_form['role'] );
					} else {
						$form_has_role_field = count( array_intersect( $all_cf_metakeys, array( 'role_select', 'role_radio' ) ) ) > 0;
						if ( ! $form_has_role_field ) {
							unset( $this->post_form['role'] );
						} else {
							$custom_field_roles = $this->custom_field_roles( $this->form_data['custom_fields'] );
							if ( ! empty( $custom_field_roles ) && ! empty( $this->post_form['role'] ) ) {
								if ( is_array( $this->post_form['role'] ) ) {
									$role = current( $this->post_form['role'] );
									$role = sanitize_key( $role );
								} else {
									$role = sanitize_key( $this->post_form['role'] );
								}

								global $wp_roles;
								$exclude_roles = array_diff( array_keys( $wp_roles->roles ), UM()->roles()->get_editable_user_roles() );

								if ( ! empty( $role ) &&
									( ! in_array( $role, $custom_field_roles, true ) || in_array( $role, $exclude_roles, true ) ) ) {
									// High level escape if hacking.
									wp_die( esc_html__( 'This is not possible for security reasons.', 'ultimate-member' ) );
								}

								$this->post_form['role'] = $role;
								$maybe_set_default_role  = false;
							}
						}
					}
				}

				$this->post_form              = $this->sanitize( $this->post_form );
				$this->post_form['submitted'] = $this->post_form;

				// Set default role from settings on registration form. It has been made after defined 'submitted' because predefined role isn't a submitted field.
				if ( $maybe_set_default_role && 'register' === $this->form_data['mode'] ) {
					$role                    = $this->assigned_role( $this->form_id );
					$this->post_form['role'] = $role;
				}

				/**
				 * Filters $_POST submitted data by the UM login, registration or profile form.
				 * It's un-slashed by `wp_unslash()`, beautified and sanitized. `role` attribute is filtered by possible role.
				 * `submitted` key is added by code and contains summary of submission.
				 *
				 * Internal Ultimate Member callbacks (Priority -> Callback name -> Excerpt):
				 * 9  - `um_submit_form_data_trim_fields()` maybe over-functionality and can be removed.
				 * 10 - `um_submit_form_data_role_fields()` important for conditional logic based on role fields in form.
				 *
				 * @param {array}  $_post           Submitted data.
				 * @param {string} $mode            Form mode. login||register||profile
				 * @param {array}  $all_cf_metakeys Form's metakeys. Since 2.6.7.
				 *
				 * @return {array} Submitted data.
				 *
				 * @since 1.3.x
				 * @hook um_submit_form_data
				 *
				 * @example <caption>Extends UM form submitted data.</caption>
				 * function my_submit_form_data( $_post, $mode, $all_cf_metakeys ) {
				 *     $_post['some_key'] = 'some value';
				 *     return $_post;
				 * }
				 * add_filter( 'um_submit_form_data', 'my_submit_form_data', 10, 3 );
				 */
				$this->post_form = apply_filters( 'um_submit_form_data', $this->post_form, $this->form_data['mode'], $all_cf_metakeys );
				/* Continue based on form mode - pre-validation */
				/**
				 * Fires for validation UM login, registration or profile form submission.
				 *
				 * Internal Ultimate Member callbacks (Priority -> Callback name -> Excerpt):
				 * 10 - `um_submit_form_errors_hook()` All form validation handlers.
				 * 20 - `um_recaptcha_validate()`      reCAPTCHA form validation handlers. um-recaptcha extension.
				 *
				 * @since 1.3.x
				 * @hook um_submit_form_errors_hook
				 *
				 * @param {array} $post      $_POST Submission array.
				 * @param {array} $form_data UM form data. Since 2.6.7
				 *
				 * @example <caption>Make any common validation action here.</caption>
				 * function my_custom_before_submit_form_post( $post, $form_data ) {
				 *     // your code here
				 * }
				 * add_action( 'um_submit_form_errors_hook', 'my_custom_submit_form_errors_hook', 10, 2 );
				 */
				do_action( 'um_submit_form_errors_hook', $this->post_form, $this->form_data );
				/* Continue based on form mode - store data. */
				/**
				 * Fires for make main actions on UM login, registration or profile form submission.
				 *
				 * Internal Ultimate Member callbacks (Priority -> Callback name -> Excerpt):
				 * ### um_submit_form_login:
				 * * 1 - `UM()->login()->verify_nonce()` Verify nonce.
				 * * 10 - `um_submit_form_login()`       Login form main handler.
				 * ### um_submit_form_register:
				 * * 1  - `UM()->register()->verify_nonce()`                 Verify nonce.
				 * * 9  - `UM()->agreement_validation()`                     GDPR Agreement.
				 * * 9  - `UM()->terms_conditions()->agreement_validation()` Terms & Conditions Agreement.
				 * * 10 - `um_submit_form_register()`                        Register form main handler.
				 * ### um_submit_form_profile:
				 * * 10 - `um_submit_form_profile()` Profile form main handler.
				 *
				 * @since 1.3.x
				 * @hook um_submit_form_errors_hook
				 *
				 * @param {array} $post      $_POST Submission array.
				 * @param {array} $form_data UM form data. Since 2.6.7
				 *
				 * @example <caption>Make any custom action.</caption>
				 * function my_custom_before_submit_form_post( $post, $form_data ) {
				 *     // your code here
				 * }
				 * add_action( 'um_submit_form_errors_hook', 'my_custom_submit_form_errors_hook', 10, 2 );
				 */
				do_action( "um_submit_form_{$this->form_data['mode']}", $this->post_form, $this->form_data );
			}
		}

		/**
		 * Beautify form data
		 *
		 * @param  array $form
		 *
		 * @return array $form
		 */
		public function beautify( $form ) {
			if ( isset( $form['form_id'] ) ) {
				$this->form_suffix = '-' . $form['form_id'];
				$this->processing  = absint( $form['form_id'] );

				foreach ( $form as $key => $value ) {
					if ( strstr( $key, $this->form_suffix ) ) {
						$a_key          = str_replace( $this->form_suffix, '', $key );
						$form[ $a_key ] = $value;
						unset( $form[ $key ] );
					}
				}
			}

			return $form;
		}


		/**
		 * Beautify form data
		 *
		 * @param  array $form
		 *
		 * @return array $form
		 */
		public function sanitize( $form ) {
			if ( isset( $form['form_id'] ) ) {
				if ( isset( $this->form_data['custom_fields'] ) ) {
					$custom_fields = maybe_unserialize( $this->form_data['custom_fields'] );

					if ( is_array( $custom_fields ) ) {
						foreach ( $custom_fields as $k => $field ) {

							if ( isset( $field['type'] ) ) {
								if ( isset( $form[ $k ] ) ) {

									switch ( $field['type'] ) {
										default:
											$form[ $k ] = apply_filters( 'um_sanitize_form_field', $form[ $k ], $field );
											break;
										case 'number':
											$form[ $k ] = (int) $form[ $k ];
											break;
										case 'textarea':
											if ( ! empty( $field['html'] ) || ( UM()->profile()->get_show_bio_key( $form ) === $k && UM()->options()->get( 'profile_show_html_bio' ) ) ) {
												$allowed_html = UM()->get_allowed_html( 'templates' );
												if ( empty( $allowed_html['iframe'] ) ) {
													$allowed_html['iframe'] = array(
														'allow'           => true,
														'frameborder'     => true,
														'loading'         => true,
														'name'            => true,
														'referrerpolicy'  => true,
														'sandbox'         => true,
														'src'             => true,
														'srcdoc'          => true,
														'title'           => true,
														'width'           => true,
														'height'          => true,
														'allowfullscreen' => true,
													);
												}
												$form[ $k ] = wp_kses( $form[ $k ], $allowed_html );
												add_filter( 'wp_kses_allowed_html', array( &$this, 'wp_kses_user_desc' ), 10, 2 );
											} else {
												$form[ $k ] = sanitize_textarea_field( $form[ $k ] );
											}
											break;
										case 'oembed':
										case 'url':
											$f = UM()->builtin()->get_a_field( $k );

											if ( is_array( $f ) && array_key_exists( 'match', $f ) && array_key_exists( 'advanced', $f ) && 'social' === $f['advanced'] ) {
												$v = sanitize_text_field( $form[ $k ] );

												// Make a proper social link
												if ( ! empty( $v ) ) {
													$replace_match = is_array( $f['match'] ) ? $f['match'][0] : $f['match'];

													$need_replace = false;
													if ( is_array( $f['match'] ) ) {
														$need_replace = true;
														foreach ( $f['match'] as $arr_match ) {
															if ( strstr( $v, $arr_match ) ) {
																$need_replace = false;
															}
														}
													}

													if ( ! is_array( $f['match'] ) || $need_replace ) {
														if ( ! strstr( $v, $replace_match ) ) {
															$domain = trim(
																strtr(
																	$replace_match,
																	array(
																		'https://' => '',
																		'http://'  => '',
																	)
																),
																' /'
															);

															if ( ! strstr( $v, $domain ) ) {
																$v = $replace_match . $v;
															} else {
																$v = 'https://' . trim(
																	strtr(
																		$v,
																		array(
																			'https://' => '',
																			'http://'  => '',
																		)
																	),
																	' /'
																);
															}
														}
													}
												}

												$form[ $k ] = $v;
											} else {
												$form[ $k ] = esc_url_raw( $form[ $k ] );
											}
											break;
										case 'password':
											$form[ $k ] = trim( $form[ $k ] );
											if ( array_key_exists( 'confirm_' . $k, $form ) ) {
												$form[ 'confirm_' . $k ] = trim( $form[ 'confirm_' . $k ] );
											}
											break;
										case 'text':
										case 'select':
										case 'image':
										case 'file':
										case 'date':
										case 'time':
										case 'rating':
										case 'googlemap':
										case 'youtube_video':
										case 'vimeo_video':
										case 'soundcloud_track':
										case 'spotify':
											$form[ $k ] = sanitize_text_field( $form[ $k ] );
											break;
										case 'multiselect':
										case 'radio':
										case 'checkbox':
											$form[ $k ] = is_array( $form[ $k ] ) ? array_map( 'sanitize_text_field', $form[ $k ] ) : sanitize_text_field( $form[ $k ] );
											break;
									}
								}
							}
						}
					}
				}

				$show_bio       = false;
				$bio_html       = false;
				$global_setting = UM()->options()->get( 'profile_show_html_bio' );
				if ( ! empty( $form_data['use_custom_settings'] ) ) {
					if ( ! empty( $form_data['show_bio'] ) ) {
						$show_bio = true;
						$bio_html = ! empty( $global_setting );
					}
				} else {
					$global_show_bio = UM()->options()->get( 'profile_show_bio' );
					if ( ! empty( $global_show_bio ) ) {
						$show_bio = true;
						$bio_html = ! empty( $global_setting );
					}
				}

				$description_key = UM()->profile()->get_show_bio_key( $this->form_data );
				if ( $show_bio && ! empty( $form[ $description_key ] ) ) {
					$field_exists = false;
					if ( ! empty( $this->form_data['custom_fields'] ) ) {
						$custom_fields = maybe_unserialize( $this->form_data['custom_fields'] );
						if ( array_key_exists( $description_key, $custom_fields ) ) {
							$field_exists = true;
							if ( ! empty( $custom_fields[ $description_key ]['html'] ) && $bio_html ) {
								$allowed_html = UM()->get_allowed_html( 'templates' );
								if ( empty( $allowed_html['iframe'] ) ) {
									$allowed_html['iframe'] = array(
										'allow'           => true,
										'frameborder'     => true,
										'loading'         => true,
										'name'            => true,
										'referrerpolicy'  => true,
										'sandbox'         => true,
										'src'             => true,
										'srcdoc'          => true,
										'title'           => true,
										'width'           => true,
										'height'          => true,
										'allowfullscreen' => true,
									);
								}
								$form[ $description_key ] = wp_kses( $form[ $description_key ], $allowed_html );

								add_filter( 'wp_kses_allowed_html', array( &$this, 'wp_kses_user_desc' ), 10, 2 );
							} else {
								$form[ $description_key ] = sanitize_textarea_field( $form[ $description_key ] );
							}
						}
					}

					if ( ! $field_exists ) {
						if ( $bio_html ) {
							$allowed_html = UM()->get_allowed_html( 'templates' );
							if ( empty( $allowed_html['iframe'] ) ) {
								$allowed_html['iframe'] = array(
									'allow'           => true,
									'frameborder'     => true,
									'loading'         => true,
									'name'            => true,
									'referrerpolicy'  => true,
									'sandbox'         => true,
									'src'             => true,
									'srcdoc'          => true,
									'title'           => true,
									'width'           => true,
									'height'          => true,
									'allowfullscreen' => true,
								);
							}
							$form[ $description_key ] = wp_kses( $form[ $description_key ], $allowed_html );

							add_filter( 'wp_kses_allowed_html', array( &$this, 'wp_kses_user_desc' ), 10, 2 );
						} else {
							$form[ $description_key ] = sanitize_textarea_field( $form[ $description_key ] );
						}
					}
				}
			}

			return $form;
		}

		public function wp_kses_user_desc( $tags, $context ) {
			if ( 'user_description' === $context || 'pre_user_description' === $context ) {
				$allowed_html = UM()->get_allowed_html( 'templates' );
				if ( empty( $allowed_html['iframe'] ) ) {
					$allowed_html['iframe'] = array(
						'allow'           => true,
						'frameborder'     => true,
						'loading'         => true,
						'name'            => true,
						'referrerpolicy'  => true,
						'sandbox'         => true,
						'src'             => true,
						'srcdoc'          => true,
						'title'           => true,
						'width'           => true,
						'height'          => true,
						'allowfullscreen' => true,
					);
				}
				$tags = $allowed_html;
			}
			return $tags;
		}

		/**
		 * Display form type as Title
		 * @param  string $mode
		 * @param  integer $post_id
		 * @return string $output
		 */
		public function display_form_type( $mode, $post_id ) {
			$output = null;
			switch ( $mode ) {
				case 'login':
					$output = __( 'Login', 'ultimate-member' );
					break;
				case 'profile':
					$output = __( 'Profile', 'ultimate-member' );
					break;
				case 'register':
					$output = __( 'Register', 'ultimate-member' );
					break;
			}
			return $output;
		}


		/**
		 * Assigned roles to a form
		 * @param  integer $post_id
		 * @return string $role
		 */
		public function assigned_role( $post_id ) {

			$global_role = get_option( 'default_role' ); // WP Global settings

			$um_global_role = UM()->options()->get( 'register_role' ); // UM Settings Global settings
			if ( ! empty( $um_global_role ) ) {
				$global_role = $um_global_role; // Form Global settings
			}

			$mode = $this->form_type( $post_id );

			/**
			 * @todo WPML integration to get role from original if it's empty
			 */
			$use_custom = get_post_meta( $post_id, "_um_{$mode}_use_custom_settings", true );
			if ( $use_custom ) { // Custom Form settings
				$role = get_post_meta( $post_id, "_um_{$mode}_role", true );
			}

			if ( empty( $role ) ) { // custom role is default, return default role's slug
				$role = $global_role;
			}

			return $role;
		}


		/**
		 * Get form type
		 * @param  integer $post_id
		 * @return string
		 */
		public function form_type( $post_id ) {
			$mode = get_post_meta( $post_id, '_um_mode', true );
			return $mode;
		}


		/**
		 * Get custom field roles
		 *
		 * @param  string $custom_fields serialized
		 * @return bool|array roles
		 */
		public function custom_field_roles( $custom_fields ) {

			$fields = maybe_unserialize( $custom_fields );
			if ( ! is_array( $fields ) ) {
				return false;
			}

			// role field
			global $wp_roles;
			$exclude_roles = array_diff( array_keys( $wp_roles->roles ), UM()->roles()->get_editable_user_roles() );

			$roles = UM()->roles()->get_roles( false, $exclude_roles );
			$roles = array_map(
				function( $item ) {
					return html_entity_decode( $item, ENT_QUOTES );
				},
				$roles
			);

			foreach ( $fields as $field_key => $field_settings ) {

				if ( strstr( $field_key, 'role_' ) && array_key_exists( 'options', $field_settings ) && is_array( $field_settings['options'] ) ) {

					if ( isset( $this->post_form['mode'] ) && 'profile' === $this->post_form['mode'] ) {
						// It's for a legacy case `array_key_exists( 'editable', $field_settings )`.
						if ( ( array_key_exists( 'editable', $field_settings ) && empty( $field_settings['editable'] ) ) || ! um_can_edit_field( $field_settings ) ) {
							continue;
						}
					}

					if ( ! um_can_view_field( $field_settings ) ) {
						continue;
					}

					$intersected_options = array();
					foreach ( $field_settings['options'] as $key => $title ) {
						if ( false !== $search_key = array_search( $title, $roles ) ) {
							$intersected_options[ $search_key ] = $title;
						} elseif ( isset( $roles[ $key ] ) ) {
							$intersected_options[ $key ] = $title;
						}
					}

					// getting roles only from the first role fields
					return array_keys( $intersected_options );
				}
			}

			return false;
		}
	}
}

class-init.php

<?php
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if ( ! class_exists( 'UM' ) ) {

	/**
	 * Main UM Class
	 *
	 * @class UM
	 * @version 2.0
	 *
	 * @method UM_bbPress_API bbPress_API()
	 * @method UM_Followers_API Followers_API()
	 * @method UM_Friends_API Friends_API()
	 * @method UM_Instagram_API Instagram_API()
	 * @method UM_Mailchimp Mailchimp()
	 * @method UM_Messaging_API Messaging_API()
	 * @method UM_myCRED myCRED()
	 * @method UM_Notices Notices()
	 * @method UM_Notifications_API Notifications_API()
	 * @method UM_Online Online()
	 * @method UM_Profile_Completeness_API Profile_Completeness_API()
	 * @method UM_reCAPTCHA reCAPTCHA()
	 * @method UM_Reviews Reviews()
	 * @method UM_Activity_API Activity_API()
	 * @method UM_Social_Login_API Social_Login_API()
	 * @method UM_User_Tags User_Tags()
	 * @method UM_Verified_Users_API Verified_Users_API()
	 * @method UM_WooCommerce_API WooCommerce_API()
	 * @method UM_Terms_Conditions Terms_Conditions()
	 * @method UM_Private_Content Private_Content()
	 * @method UM_User_Locations User_Locations()
	 * @method UM_Photos_API Photos_API()
	 * @method UM_Groups Groups()
	 * @method UM_Frontend_Posting Frontend_Posting()
	 * @method UM_Notes Notes()
	 * @method UM_User_Bookmarks User_Bookmarks()
	 * @method UM_Unsplash Unsplash()
	 * @method UM_ForumWP ForumWP()
	 * @method UM_Profile_Tabs Profile_Tabs()
	 * @method UM_JobBoardWP JobBoardWP()
	 * @method UM_Google_Authenticator Google_Authenticator()
	 */
	final class UM extends UM_Functions {


		/**
		 * @var UM the single instance of the class
		 */
		protected static $instance;


		/**
		 * @var array all plugin's classes
		 */
		public $classes = array();


		/**
		 * @var bool Old variable
		 *
		 * @todo deprecate this variable
		 */
		public $is_filtering;


		/**
		 * WP Native permalinks turned on?
		 *
		 * @var
		 */
		public $is_permalinks = false;

		/**
		 * @var null|string
		 */
		public $honeypot = null;

		/**
		 * Main UM Instance
		 *
		 * Ensures only one instance of UM is loaded or can be loaded.
		 *
		 * @since 1.0
		 * @static
		 * @see UM()
		 * @return UM - Main instance
		 */
		public static function instance() {
			if ( is_null( self::$instance ) ) {
				self::$instance = new self();
				self::$instance->_um_construct();
			}

			return self::$instance;
		}


		/**
		 * Create plugin classes - not sure if it needs!!!!!!!!!!!!!!!
		 *
		 * @since 1.0
		 * @see UM()
		 *
		 * @param $name
		 * @param array $params
		 * @return mixed
		 */
		public function __call( $name, array $params ) {

			if ( empty( $this->classes[ $name ] ) ) {

				/**
				 * UM hook
				 *
				 * @type filter
				 * @title um_call_object_{$class_name}
				 * @description Extend call classes of Extensions for use UM()->class_name()->method|function
				 * @input_vars
				 * [{"var":"$class","type":"object","desc":"Class Instance"}]
				 * @change_log
				 * ["Since: 2.0"]
				 * @usage add_filter( 'um_call_object_{$class_name}', 'function_name', 10, 1 );
				 * @example
				 * <?php
				 * add_filter( 'um_call_object_{$class_name}', 'my_extension_class', 10, 1 );
				 * function my_extension_class( $class ) {
				 *     // your code here
				 *     return $class;
				 * }
				 * ?>
				 */
				$this->classes[ $name ] = apply_filters( 'um_call_object_' . $name, false );
			}

			return $this->classes[ $name ];

		}


		/**
		 * Function for add classes to $this->classes
		 * for run using UM()
		 *
		 * @since 2.0
		 *
		 * @param string $class_name
		 * @param bool $instance
		 */
		public function set_class( $class_name, $instance = false ) {
			if ( empty( $this->classes[ $class_name ] ) ) {
				$class = 'UM_' . $class_name;
				$this->classes[ $class_name ] = $instance ? $class::instance() : new $class;
			}
		}


		/**
		 * Cloning is forbidden.
		 * @since 1.0
		 */
		public function __clone() {
			_doing_it_wrong( __FUNCTION__, __( 'Cheatin&#8217; huh?', 'ultimate-member' ), '1.0' );
		}


		/**
		 * Unserializing instances of this class is forbidden.
		 * @since 1.0
		 */
		public function __wakeup() {
			_doing_it_wrong( __FUNCTION__, __( 'Cheatin&#8217; huh?', 'ultimate-member' ), '1.0' );
		}


		/**
		 * UM constructor.
		 *
		 * @since 1.0
		 */
		function __construct() {
			parent::__construct();
		}


		/**
		 * UM pseudo-constructor.
		 *
		 * @since 2.0.18
		 */
		function _um_construct() {
			//register autoloader for include UM classes
			spl_autoload_register( array( $this, 'um__autoloader' ) );

			if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {

				if ( get_option( 'permalink_structure' ) ) {
					$this->is_permalinks = true;
				}

				$this->is_filtering = 0;
				$this->honeypot = 'um_request';

				// textdomain loading
				add_action( 'init', array( &$this, 'localize' ), 0 );

				// include UM classes
				$this->includes();

				// include hook files
				add_action( 'plugins_loaded', array( &$this, 'init' ), 0 );
				//run hook for extensions init
				add_action( 'plugins_loaded', array( &$this, 'extensions_init' ), -19 );

				add_action( 'init', array( &$this, 'old_update_patch' ), 0 );

				//run activation
				register_activation_hook( UM_PLUGIN, array( &$this, 'activation' ) );

				register_deactivation_hook( UM_PLUGIN, array( &$this, 'deactivation' ) );

				if ( is_multisite() && ! defined( 'DOING_AJAX' ) ) {
					add_action( 'wp_loaded', array( $this, 'maybe_network_activation' ) );
				}

				// init widgets
				add_action( 'widgets_init', array( &$this, 'widgets_init' ) );

				//include short non class functions
				require_once 'um-short-functions.php';
				require_once 'um-deprecated-functions.php';
			}
		}


		/**
		 * Loading UM textdomain
		 *
		 * 'ultimate-member' by default
		 */
		public function localize() {
			// The function `get_user_locale()` will return `get_locale()` result by default if user or its locale is empty.
			$language_locale = get_user_locale();

			/**
			 * UM hook
			 *
			 * @type filter
			 * @title um_language_locale
			 * @description Change UM language locale
			 * @input_vars
			 * [{"var":"$locale","type":"string","desc":"UM language locale"}]
			 * @change_log
			 * ["Since: 2.0"]
			 * @usage add_filter( 'um_language_locale', 'function_name', 10, 1 );
			 * @example
			 * <?php
			 * add_filter( 'um_language_locale', 'my_language_locale', 10, 1 );
			 * function my_language_locale( $locale ) {
			 *     // your code here
			 *     return $locale;
			 * }
			 * ?>
			 */
			$language_locale = apply_filters( 'um_language_locale', $language_locale );


			/**
			 * UM hook
			 *
			 * @type filter
			 * @title um_language_textdomain
			 * @description Change UM textdomain
			 * @input_vars
			 * [{"var":"$domain","type":"string","desc":"UM Textdomain"}]
			 * @change_log
			 * ["Since: 2.0"]
			 * @usage add_filter( 'um_language_textdomain', 'function_name', 10, 1 );
			 * @example
			 * <?php
			 * add_filter( 'um_language_textdomain', 'my_textdomain', 10, 1 );
			 * function my_textdomain( $domain ) {
			 *     // your code here
			 *     return $domain;
			 * }
			 * ?>
			 */
			$language_domain = apply_filters( 'um_language_textdomain', 'ultimate-member' );

			$language_file = WP_LANG_DIR . '/plugins/' . $language_domain . '-' . $language_locale . '.mo';

			/**
			 * UM hook
			 *
			 * @type filter
			 * @title um_language_file
			 * @description Change UM language file path
			 * @input_vars
			 * [{"var":"$language_file","type":"string","desc":"UM language file path"}]
			 * @change_log
			 * ["Since: 2.0"]
			 * @usage add_filter( 'um_language_file', 'function_name', 10, 1 );
			 * @example
			 * <?php
			 * add_filter( 'um_language_file', 'my_language_file', 10, 1 );
			 * function my_language_file( $language_file ) {
			 *     // your code here
			 *     return $language_file;
			 * }
			 * ?>
			 */
			$language_file = apply_filters( 'um_language_file', $language_file );

			// Unload textdomain if it has already loaded.
			if ( is_textdomain_loaded( $language_domain ) ) {
				unload_textdomain( $language_domain, true );
			}
			load_textdomain( $language_domain, $language_file );
		}


		/**
		 * 1.3.x active extensions deactivate for properly running 2.0.x AJAX upgrades
		 */
		function old_update_patch() {
			global $um_woocommerce, $um_bbpress, $um_followers, $um_friends, $um_mailchimp, $um_messaging, $um_mycred, $um_notices, $um_notifications, $um_online, $um_private_content, $um_profile_completeness, $um_recaptcha, $um_reviews, $um_activity, $um_social_login, $um_user_tags, $um_verified;

			if ( is_object( $um_woocommerce ) ) {
				remove_action( 'init', array( $um_woocommerce, 'plugin_check' ), 1 );
				$um_woocommerce->plugin_inactive = true;
			}

			if ( is_object( $um_bbpress ) ) {
				remove_action( 'init', array( $um_bbpress, 'plugin_check' ), 4 );
				$um_bbpress->plugin_inactive = true;
			}

			if ( is_object( $um_followers ) ) {
				remove_action( 'init', array( $um_followers, 'plugin_check' ), 1 );
				$um_followers->plugin_inactive = true;
			}

			if ( is_object( $um_friends ) ) {
				remove_action( 'init', array( $um_friends, 'plugin_check' ), 1 );
				$um_friends->plugin_inactive = true;
			}

			if ( is_object( $um_mailchimp ) ) {
				remove_action( 'init', array( $um_mailchimp, 'plugin_check' ), 1 );
				$um_mailchimp->plugin_inactive = true;
			}

			if ( is_object( $um_messaging ) ) {
				remove_action( 'init', array( $um_messaging, 'plugin_check' ), 1 );
				$um_messaging->plugin_inactive = true;
			}

			if ( is_object( $um_mycred ) ) {
				remove_action( 'init', array( $um_mycred, 'plugin_check' ), 1 );
				$um_mycred->plugin_inactive = true;
			}

			if ( is_object( $um_notices ) ) {
				remove_action( 'init', array( $um_notices, 'plugin_check' ), 1 );
				$um_notices->plugin_inactive = true;
			}

			if ( is_object( $um_notifications ) ) {
				remove_action( 'init', array( $um_notifications, 'plugin_check' ), 1 );
				$um_notifications->plugin_inactive = true;
			}

			if ( is_object( $um_online ) ) {
				remove_action( 'init', array( $um_online, 'plugin_check' ), 1 );
				$um_online->plugin_inactive = true;
			}

			if ( is_object( $um_private_content ) ) {
				remove_action( 'init', array( $um_private_content, 'plugin_check' ), 1 );
				$um_private_content->plugin_inactive = true;
			}

			if ( is_object( $um_profile_completeness ) ) {
				remove_action( 'init', array( $um_profile_completeness, 'plugin_check' ), 1 );
				$um_profile_completeness->plugin_inactive = true;
			}

			if ( is_object( $um_recaptcha ) ) {
				remove_action( 'init', array( $um_recaptcha, 'plugin_check' ), 1 );
				$um_recaptcha->plugin_inactive = true;
			}

			if ( is_object( $um_reviews ) ) {
				remove_action( 'init', array( $um_reviews, 'plugin_check' ), 1 );
				$um_reviews->plugin_inactive = true;
			}

			if ( is_object( $um_activity ) ) {
				remove_action( 'init', array( $um_activity, 'plugin_check' ), 1 );
				$um_activity->plugin_inactive = true;
			}

			if ( is_object( $um_social_login ) ) {
				remove_action( 'init', array( $um_social_login, 'plugin_check' ), 1 );
				$um_social_login->plugin_inactive = true;
			}

			if ( is_object( $um_user_tags ) ) {
				remove_action( 'init', array( $um_user_tags, 'plugin_check' ), 1 );
				$um_user_tags->plugin_inactive = true;
			}

			if ( is_object( $um_verified ) ) {
				remove_action( 'init', array( $um_verified, 'plugin_check' ), 1 );
				$um_verified->plugin_inactive = true;
			}
		}


		/**
		 * Autoload UM classes handler
		 *
		 * @since 2.0
		 *
		 * @param $class
		 */
		function um__autoloader( $class ) {
			if ( strpos( $class, 'um' ) === 0 ) {

				$array = explode( '\\', strtolower( $class ) );
				$array[ count( $array ) - 1 ] = 'class-'. end( $array );
				if ( strpos( $class, 'um_ext' ) === 0 ) {
					$full_path = str_replace( 'ultimate-member', '', untrailingslashit( UM_PATH ) ) . str_replace( '_', '-', $array[1] ) . DIRECTORY_SEPARATOR . 'includes' . DIRECTORY_SEPARATOR;
					unset( $array[0], $array[1] );
					$path = implode( DIRECTORY_SEPARATOR, $array );
					$path = str_replace( '_', '-', $path );
					$full_path .= $path . '.php';
				} else if ( strpos( $class, 'um\\' ) === 0 ) {
					$class = implode( '\\', $array );
					$slash = DIRECTORY_SEPARATOR;
					$path = str_replace(
						array( 'um\\', '_', '\\' ),
						array( $slash, '-', $slash ),
						$class );
					$full_path =  UM_PATH . 'includes' . $path . '.php';
				}

				if( isset( $full_path ) && file_exists( $full_path ) ) {
					include_once $full_path;
				}
			}
		}


		/**
		 * Plugin Activation
		 *
		 * @since 2.0
		 */
		function activation() {
			$this->single_site_activation();
			if ( is_multisite() ) {
				update_network_option( get_current_network_id(), 'um_maybe_network_wide_activation', 1 );
			}
		}


		/**
		 * Plugin Deactivation
		 *
		 * @since 2.3
		 */
		function deactivation() {
			$this->cron()->unschedule_events();
		}


		/**
		 * Maybe need multisite activation process
		 *
		 * @since 2.1.7
		 */
		function maybe_network_activation() {
			$maybe_activation = get_network_option( get_current_network_id(), 'um_maybe_network_wide_activation' );

			if ( $maybe_activation ) {

				delete_network_option( get_current_network_id(), 'um_maybe_network_wide_activation' );

				if ( is_plugin_active_for_network( UM_PLUGIN ) ) {
					// get all blogs
					$blogs = get_sites();
					if ( ! empty( $blogs ) ) {
						foreach( $blogs as $blog ) {
							switch_to_blog( $blog->blog_id );
							//make activation script for each sites blog
							$this->single_site_activation();
							restore_current_blog();
						}
					}
				}
			}
		}


		/**
		 * Single site plugin activation handler
		 */
		function single_site_activation() {
			//first install
			$version = get_option( 'um_version' );
			if ( ! $version ) {
				update_option( 'um_last_version_upgrade', UM_VERSION );

				add_option( 'um_first_activation_date', time() );

				//show avatars on first install
				if ( ! get_option( 'show_avatars' ) ) {
					update_option( 'show_avatars', 1 );
				}
			} else {
				UM()->options()->update( 'rest_api_version', '1.0' );
			}

			if ( $version != UM_VERSION ) {
				update_option( 'um_version', UM_VERSION );
			}

			//run setup
			$this->common()->cpt()->create_post_types();
			$this->setup()->run_setup();

			$this->cron()->schedule_events();
		}


		/**
		 *
		 */
		function extensions_init() {
			do_action( 'um_core_loaded' );
		}


		/**
		 * Include required core files used in admin and on the frontend.
		 *
		 * @since 2.0
		 *
		 * @return void
		 */
		public function includes() {

			$this->common()->includes();
			$this->access();

			if ( $this->is_request( 'ajax' ) ) {
				$this->ajax()->includes();
				$this->admin();
				$this->ajax_init();
				$this->admin_ajax_hooks();
				$this->metabox();
				$this->admin_upgrade()->init_packages_ajax_handlers();
				$this->admin_gdpr();
				$this->columns();
				$this->admin()->notices();
				$this->admin_navmenu();
				$this->plugin_updater();
				$this->theme_updater();
			} elseif ( $this->is_request( 'admin' ) ) {
				$this->admin()->includes();
				$this->admin();
				$this->admin_menu();
				$this->admin_upgrade();
				$this->admin_settings();
				$this->columns();
				$this->metabox();
				$this->users();
				$this->dragdrop();
				$this->admin_gdpr();
				$this->admin_navmenu();
				$this->plugin_updater();
				$this->theme_updater();
			} elseif ( $this->is_request( 'frontend' ) ) {
				$this->frontend()->includes();
				$this->account();
				$this->password();
				$this->login();
				$this->register();
				$this->user_posts();
				$this->logout();
			}

			//common includes
			$this->rewrite();
			$this->mail();
			$this->rest_api();
			$this->shortcodes();
			$this->roles();
			$this->user();
			$this->profile();
			$this->builtin();
			$this->form()->hooks();
			$this->permalinks();
			$this->modal();
			$this->cron();
			$this->mobile();
			$this->external_integrations();
			$this->gdpr();
			$this->member_directory();
			$this->blocks();
			$this->secure();

			//if multisite networks active
			if ( is_multisite() ) {
				$this->multisite();
			}

		}


		/**
		 * @since 2.1.0
		 *
		 * @return um\core\Member_Directory()
		 */
		function member_directory() {
			if ( empty( $this->classes['member_directory'] ) ) {

				$search_in_table = $this->options()->get( 'member_directory_own_table' );

				if ( ! empty( $search_in_table ) ) {
					$this->classes['member_directory'] = new um\core\Member_Directory_Meta();
				} else {
					$this->classes['member_directory'] = new um\core\Member_Directory();
				}
			}
			return $this->classes['member_directory'];
		}


		/**
		 * @since 2.6.1
		 *
		 * @return um\core\Blocks()
		 */
		public function blocks() {
			if ( empty( $this->classes['blocks'] ) ) {
				$this->classes['blocks'] = new um\core\Blocks();
			}

			return $this->classes['blocks'];
		}

		/**
		 * Get extension API
		 *
		 * @since 2.0.34
		 *
		 * @param $slug
		 *
		 * @return um_ext\um_bbpress\Init
		 */
		function extension( $slug ) {
			if ( empty( $this->classes[ $slug ] ) ) {
				$class = "um_ext\um_{$slug}\Init";

				/**
				 * @var $class um_ext\um_bbpress\Init
				 */
				$this->classes[ $slug ] = $class::instance();
			}

			return $this->classes[ $slug ];
		}


		/**
		 * @param $class
		 *
		 * @return mixed
		 */
		function call_class( $class ) {
			$key = strtolower( $class );

			if ( empty( $this->classes[ $key ] ) ) {
				$this->classes[ $key ] = new $class;
			}

			return $this->classes[ $key ];
		}

		/**
		 * @since 2.6.8
		 *
		 * @return um\ajax\Init
		 */
		public function ajax() {
			if ( empty( $this->classes['um\ajax\init'] ) ) {
				$this->classes['um\ajax\init'] = new um\ajax\Init();
			}

			return $this->classes['um\ajax\init'];
		}

		/**
		 * @since 2.0
		 * @since 2.6.8 changed namespace and class content.
		 *
		 * @return um\common\Init
		 */
		public function common() {
			if ( empty( $this->classes['um\common\init'] ) ) {
				$this->classes['um\common\init'] = new um\common\Init();
			}
			return $this->classes['um\common\init'];
		}

		/**
		 * @since 2.6.8
		 *
		 * @return um\frontend\Init
		 */
		public function frontend() {
			if ( empty( $this->classes['um\frontend\init'] ) ) {
				$this->classes['um\frontend\init'] = new um\frontend\Init();
			}
			return $this->classes['um\frontend\init'];
		}

		/**
		 * @since 2.0
		 *
		 * @return um\core\External_Integrations()
		 */
		function external_integrations() {
			if ( empty( $this->classes['external_integrations'] ) ) {
				$this->classes['external_integrations'] = new um\core\External_Integrations();
			}
			return $this->classes['external_integrations'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Options()
		 */
		function options() {
			if ( empty( $this->classes['options'] ) ) {
				$this->classes['options'] = new um\core\Options();
			}
			return $this->classes['options'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Plugin_Updater()
		 */
		function plugin_updater() {
			if ( empty( $this->classes['plugin_updater'] ) ) {
				$this->classes['plugin_updater'] = new um\core\Plugin_Updater();
			}
			return $this->classes['plugin_updater'];
		}


		/**
		 * @since 2.0.45
		 * @return um\admin\core\Admin_Theme_Updater()
		 */
		function theme_updater() {
			if ( empty( $this->classes['theme_updater'] ) ) {
				$this->classes['theme_updater'] = new um\admin\core\Admin_Theme_Updater();
			}
			return $this->classes['theme_updater'];
		}

		/**
		 * @since 2.0
		 */
		function ajax_init() {
			new um\core\AJAX_Common();
		}

		/**
		 * @since 2.0.30
		 */
		function admin_ajax_hooks() {
			if ( empty( $this->classes['admin_ajax_hooks'] ) ) {
				$this->classes['admin_ajax_hooks'] = new um\admin\core\Admin_Ajax_Hooks();
			}
			return $this->classes['admin_ajax_hooks'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\admin\Admin
		 */
		public function admin() {
			if ( empty( $this->classes['admin'] ) ) {
				$this->classes['admin'] = new um\admin\Admin();
			}
			return $this->classes['admin'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\admin\core\Admin_Menu()
		 */
		function admin_menu() {
			if ( empty( $this->classes['admin_menu'] ) ) {
				$this->classes['admin_menu'] = new um\admin\core\Admin_Menu();
			}
			return $this->classes['admin_menu'];
		}


		/**
		 * @since 2.0.26
		 *
		 * @return um\admin\core\Admin_Navmenu()
		 */
		function admin_navmenu() {
			if ( empty( $this->classes['admin_navmenu'] ) ) {
				$this->classes['admin_navmenu'] = new um\admin\core\Admin_Navmenu();
			}
			return $this->classes['admin_navmenu'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\admin\core\Admin_Settings()
		 */
		function admin_settings() {
			if ( empty( $this->classes['admin_settings'] ) ) {
				$this->classes['admin_settings'] = new um\admin\core\Admin_Settings();
			}
			return $this->classes['admin_settings'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\admin\core\Admin_Upgrade()
		 */
		function admin_upgrade() {
			if ( empty( $this->classes['admin_upgrade'] ) ) {
				$this->classes['admin_upgrade'] = um\admin\core\Admin_Upgrade::instance();
				//$this->classes['admin_upgrade'] = new um\admin\core\Admin_Upgrade();
			}
			return $this->classes['admin_upgrade'];
		}


		/**
		 * GDPR privacy policy
		 *
		 * @since 2.0.14
		 *
		 * @return bool|um\admin\core\Admin_GDPR()
		 */
		function admin_gdpr() {
			global $wp_version;

			if ( version_compare( $wp_version, '4.9.6', '<' ) ) {
				return false;
			}

			if ( empty( $this->classes['admin_gdpr'] ) ) {
				$this->classes['admin_gdpr'] = new um\admin\core\Admin_GDPR();
			}
			return $this->classes['admin_gdpr'];
		}


		/**
		 * GDPR privacy policy
		 *
		 * @since 2.0.14
		 *
		 * @return bool|um\core\GDPR()
		 */
		function gdpr() {
			global $wp_version;

			if ( version_compare( $wp_version, '4.9.6', '<' ) ) {
				return false;
			}

			if ( empty( $this->classes['gdpr'] ) ) {
				$this->classes['gdpr'] = new um\core\GDPR();
			}
			return $this->classes['gdpr'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\admin\core\Admin_Columns()
		 */
		function columns() {
			if ( empty( $this->classes['admin_columns'] ) ) {
				$this->classes['admin_columns'] = new um\admin\core\Admin_Columns();
			}
			return $this->classes['admin_columns'];
		}


		/**
		 * @since 2.0
		 * @depecated 2.7.0
		 *
		 * @return um\admin\Enqueue
		 */
		public function admin_enqueue() {
			_deprecated_function( __METHOD__, '2.7.0', 'UM()->admin()->enqueue()' );
			return $this->admin()->enqueue();
		}


		/**
		 * @since 2.0
		 *
		 * @return um\admin\core\Admin_Metabox()
		 */
		function metabox() {
			if ( empty( $this->classes['admin_metabox'] ) ) {
				$this->classes['admin_metabox'] = new um\admin\core\Admin_Metabox();
			}
			return $this->classes['admin_metabox'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\admin\core\Admin_Users()
		 */
		function users() {
			if ( empty( $this->classes['admin_users'] ) ) {
				$this->classes['admin_users'] = new um\admin\core\Admin_Users();
			}
			return $this->classes['admin_users'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\admin\core\Admin_Builder()
		 */
		function builder() {
			if ( empty( $this->classes['admin_builder'] ) ) {
				$this->classes['admin_builder'] = new um\admin\core\Admin_Builder();
			}
			return $this->classes['admin_builder'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\admin\core\Admin_DragDrop()
		 */
		function dragdrop() {
			if ( empty( $this->classes['admin_dragdrop'] ) ) {
				$this->classes['admin_dragdrop'] = new um\admin\core\Admin_DragDrop();
			}
			return $this->classes['admin_dragdrop'];
		}


		/**
		 * @since 2.0
		 *
		 * @param bool|array $data
		 * @return um\admin\core\Admin_Forms()
		 */
		function admin_forms( $data = false ) {
			if ( ! isset( $this->classes[ 'admin_forms_' . $data['class'] ] ) || empty( $this->classes[ 'admin_forms_' . $data['class'] ] ) ) {
				$this->classes[ 'admin_forms_' . $data['class'] ] = new um\admin\core\Admin_Forms( $data );
			}
			return $this->classes[ 'admin_forms_' . $data['class'] ];
		}


		/**
		 * @since 2.0
		 *
		 * @param bool|array $data
		 * @return um\admin\core\Admin_Forms_Settings()
		 */
		function admin_forms_settings( $data = false ) {
			if ( ! isset( $this->classes[ 'admin_forms_settings_' . $data['class'] ] ) || empty( $this->classes[ 'admin_forms_settings_' . $data['class'] ] ) ) {
				$this->classes[ 'admin_forms_settings_' . $data['class'] ] = new um\admin\core\Admin_Forms_Settings( $data );
			}
			return $this->classes[ 'admin_forms_settings_' . $data['class'] ];
		}


		/**
		 * @since 2.0.34
		 *
		 * @return um\Extensions
		 */
		function extensions() {
			if ( empty( $this->classes['extensions'] ) ) {
				$this->classes['extensions'] = new um\Extensions();
			}

			return $this->classes['extensions'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\Dependencies
		 */
		function dependencies() {
			if ( empty( $this->classes['dependencies'] ) ) {
				$this->classes['dependencies'] = new um\Dependencies();
			}

			return $this->classes['dependencies'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\Config
		 */
		function config() {
			if ( empty( $this->classes['config'] ) ) {
				$this->classes['config'] = new um\Config();
			}

			return $this->classes['config'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\rest\API_v1|um\core\rest\API_v2
		 */
		function rest_api() {

			$api_version = $this->options()->get( 'rest_api_version' );

			if ( empty( $this->classes['rest_api'] ) ) {
				if ( '1.0' === $api_version ) {
					$this->classes['rest_api'] = new um\core\rest\API_v1();
				} elseif ( '2.0' === $api_version ) {
					$this->classes['rest_api'] = new um\core\rest\API_v2();
				} else {
					$this->classes['rest_api'] = new um\core\rest\API_v1();
				}
			}

			return $this->classes['rest_api'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Rewrite
		 */
		function rewrite() {
			if ( empty( $this->classes['rewrite'] ) ) {
				$this->classes['rewrite'] = new um\core\Rewrite();
			}

			return $this->classes['rewrite'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Setup
		 */
		function setup() {
			if ( empty( $this->classes['setup'] ) ) {
				$this->classes['setup'] = new um\core\Setup();
			}

			return $this->classes['setup'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\FontIcons
		 */
		function fonticons() {
			if ( empty( $this->classes['fonticons'] ) ) {
				$this->classes['fonticons'] = new um\core\FontIcons();
			}

			return $this->classes['fonticons'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Login
		 */
		function login() {
			if ( empty( $this->classes['login'] ) ) {
				$this->classes['login'] = new um\core\Login();
			}

			return $this->classes['login'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Register
		 */
		function register() {
			if ( empty( $this->classes['register'] ) ) {
				$this->classes['register'] = new um\core\Register();
			}

			return $this->classes['register'];
		}

		/**
		 * @since 2.0
		 * @todo Make it deprecated and review extensions.
		 *
		 * @return um\frontend\Enqueue
		 */
		public function enqueue() {
			_deprecated_function( __METHOD__, '2.7.0', 'UM()->frontend()->enqueue()' );
			return $this->frontend()->enqueue();
		}

		/**
		 * @since 2.0
		 *
		 * @return um\core\Shortcodes
		 */
		function shortcodes() {
			if ( empty( $this->classes['shortcodes'] ) ) {
				$this->classes['shortcodes'] = new um\core\Shortcodes();
			}

			return $this->classes['shortcodes'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Account
		 */
		function account() {
			if ( empty( $this->classes['account'] ) ) {
				$this->classes['account'] = new um\core\Account();
			}

			return $this->classes['account'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Password
		 */
		function password() {
			if ( empty( $this->classes['password'] ) ) {
				$this->classes['password'] = new um\core\Password();
			}

			return $this->classes['password'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Form
		 */
		function form() {
			if ( empty( $this->classes['form'] ) ) {
				$this->classes['form'] = new um\core\Form();
			}

			return $this->classes['form'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Fields
		 */
		function fields() {
			if ( empty( $this->classes['fields'] ) ) {
				$this->classes['fields'] = new um\core\Fields();
			}

			return $this->classes['fields'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\User
		 */
		function user() {
			if ( empty( $this->classes['user'] ) ) {
				$this->classes['user'] = new um\core\User();
			}

			return $this->classes['user'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Roles_Capabilities
		 */
		function roles() {
			if ( empty( $this->classes['roles'] ) ) {
				$this->classes['roles'] = new um\core\Roles_Capabilities();
			}

			return $this->classes['roles'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\User_posts
		 */
		function user_posts() {
			if ( empty( $this->classes['user_posts'] ) ) {
				$this->classes['user_posts'] = new um\core\User_posts();
			}

			return $this->classes['user_posts'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Profile
		 */
		function profile() {
			if ( empty( $this->classes['profile'] ) ) {
				$this->classes['profile'] = new um\core\Profile();
			}

			return $this->classes['profile'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Query
		 */
		function query() {
			if ( empty( $this->classes['query'] ) ) {
				$this->classes['query'] = new um\core\Query();
			}

			return $this->classes['query'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Date_Time
		 */
		function datetime() {
			if ( empty( $this->classes['datetime'] ) ) {
				$this->classes['datetime'] = new um\core\Date_Time();
			}

			return $this->classes['datetime'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Builtin
		 */
		function builtin() {
			if ( empty( $this->classes['builtin'] ) ) {
				$this->classes['builtin'] = new um\core\Builtin();
			}

			return $this->classes['builtin'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Files
		 */
		function files() {
			if ( empty( $this->classes['files'] ) ) {
				$this->classes['files'] = new um\core\Files();
			}

			return $this->classes['files'];
		}


		/**
		 * @since 2.0.21
		 *
		 * @return um\core\Uploader
		 */
		function uploader() {
			if ( empty( $this->classes['uploader'] ) ) {
				$this->classes['uploader'] = new um\core\Uploader();
			}
			return $this->classes['uploader'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Validation
		 */
		function validation() {
			if ( empty( $this->classes['validation'] ) ) {
				$this->classes['validation'] = new um\core\Validation();
			}

			return $this->classes['validation'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Access
		 */
		function access() {
			if ( empty( $this->classes['access'] ) ) {
				$this->classes['access'] = new um\core\Access();
			}

			return $this->classes['access'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Permalinks
		 */
		function permalinks() {
			if ( empty( $this->classes['permalinks'] ) ) {
				$this->classes['permalinks'] = new um\core\Permalinks();
			}

			return $this->classes['permalinks'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Mail
		 */
		function mail() {
			if ( empty( $this->classes['mail'] ) ) {
				$this->classes['mail'] = new um\core\Mail();
			}

			return $this->classes['mail'];
		}


		/**
		 * @deprecated 2.1.0
		 *
		 * @since 2.0
		 *
		 * @return um\core\Members
		 */
		function members() {
			um_deprecated_function( 'UM()->members()', '2.1.0', 'UM()->member_directory()' );

			if ( empty( $this->classes['members'] ) ) {
				$this->classes['members'] = new um\core\Members();
			}

			return $this->classes['members'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Logout
		 */
		function logout() {
			if ( empty( $this->classes['logout'] ) ) {
				$this->classes['logout'] = new um\core\Logout();
			}

			return $this->classes['logout'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Modal
		 */
		function modal() {
			if ( empty( $this->classes['modal'] ) ) {
				$this->classes['modal'] = new um\core\Modal();
			}

			return $this->classes['modal'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Cron
		 */
		function cron() {
			if ( empty( $this->classes['cron'] ) ) {
				$this->classes['cron'] = new um\core\Cron();
			}

			return $this->classes['cron'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\core\Templates
		 */
		function templates() {
			if ( empty( $this->classes['templates'] ) ) {
				$this->classes['templates'] = new um\core\Templates();
			}

			return $this->classes['templates'];
		}


		/**
		 * @since 2.0
		 *
		 * @return um\lib\mobiledetect\Um_Mobile_Detect
		 */
		function mobile() {
			if ( empty( $this->classes['mobile'] ) ) {
				$this->classes['mobile'] = new um\lib\mobiledetect\Um_Mobile_Detect();
			}

			return $this->classes['mobile'];
		}


		/**
		 * @since 2.0.44
		 *
		 * @return um\core\Multisite
		 */
		function multisite() {

			if ( empty( $this->classes['multisite'] ) ) {
				$this->classes['multisite'] = new um\core\Multisite();
			}

			return $this->classes['multisite'];
		}


		/**
		 * Include files with hooked filters/actions
		 *
		 * @since 2.0
		 */
		function init() {

			ob_start();

			require_once 'core/um-actions-form.php';
			require_once 'core/um-actions-access.php';
			require_once 'core/um-actions-wpadmin.php';
			require_once 'core/um-actions-core.php';
			require_once 'core/um-actions-ajax.php';
			require_once 'core/um-actions-login.php';
			require_once 'core/um-actions-register.php';
			require_once 'core/um-actions-profile.php';
			require_once 'core/um-actions-account.php';
			require_once 'core/um-actions-global.php';
			require_once 'core/um-actions-user.php';
			require_once 'core/um-actions-save-profile.php';
			require_once 'core/um-actions-misc.php';

			require_once 'core/um-filters-login.php';
			require_once 'core/um-filters-fields.php';
			require_once 'core/um-filters-files.php';
			require_once 'core/um-filters-navmenu.php';
			require_once 'core/um-filters-avatars.php';
			require_once 'core/um-filters-user.php';

			require_once 'core/um-filters-profile.php';
			require_once 'core/um-filters-account.php';
			require_once 'core/um-filters-misc.php';
			require_once 'core/um-filters-commenting.php';

		}


		/**
		 * Init UM widgets
		 *
		 * @since 2.0
		 */
		function widgets_init() {
			register_widget( 'um\widgets\UM_Search_Widget' );
		}
	}
}


/**
 * Function for calling UM methods and variables
 *
 * @since 2.0
 *
 * @return UM
 */
function UM() {
	return UM::instance();
}


// Global for backwards compatibility.
$GLOBALS['ultimatemember'] = UM();