Create ACF Flexible Field with Meta Box Plugin

flexible-content-field-by-meta-box.php

<?php
add_filter( 'rwmb_meta_boxes', 'your_prefix_register_meta_boxes' );
function your_prefix_register_meta_boxes( $meta_boxes ) {
    $meta_boxes[] = array (
        'title'      => 'Flexible Field Example',
        'post_types' => 'page',
        'fields'     => array(
            array (
                'id'     => 'sections',
                'type'   => 'group',
                'name'   => 'Sections',
                'fields' => array(
                    array (
                        'id'          => 'select',
                        'name'        => 'Select',
                        'type'        => 'select',
                        'placeholder' => 'Select an Item',
                        'options'     => array(
                            'Services'     => 'Services',
                            'Testimonials' => 'Testimonials',
                            'Facts'        => 'Facts',
                        ),
                    ),
                    array (
                        'id'     => 'services',
                        'type'   => 'group',
                        'name'   => 'Services',
                        'fields' => array(
                            array (
                                'id'     => 'secvices_box',
                                'type'   => 'group',
                                'name'   => 'Secvices Box',
                                'fields' => array(
                                    array (
                                        'id'   => 'image',
                                        'type' => 'single_image',
                                        'name' => 'Icon services',
                                        'desc' => 'Transparent background',
                                    ),
                                    array (
                                        'id'   => 'description',
                                        'type' => 'textarea',
                                        'name' => 'Description',
                                    ),
                                ),
                                'clone'       => true,
                                'collapsible' => true,
                                'group_title' => 'Secvices Box',
                            ),
                        ),
                        'default_state' => 'expanded',
                        'collapsible'   => true,
                        'save_state'    => true,
                        'group_title'   => 'Services Section',
                        'visible'       => array( 'select', 'Services' ),
                    ),
                    array (
                        'id'     => 'testimonials',
                        'type'   => 'group',
                        'name'   => 'Testimonials',
                        'fields' => array(
                            array (
                                'id'     => 'testimonials_box',
                                'type'   => 'group',
                                'name'   => 'Testimonials Box',
                                'fields' => array(
                                    array (
                                        'id'               => 'image_upload_2',
                                        'type'             => 'image_upload',
                                        'name'             => 'Image profile',
                                        'max_status'       => false,
                                        'max_file_uploads' => 1,
                                        'image_size'       => 'thumbnail',
                                    ),
                                    array (
                                        'id'   => 'Content',
                                        'name' => 'Content',
                                        'type' => 'wysiwyg',
                                    ),
                                ),
                            ),
                        ),
                        'collapsible' => true,
                        'group_title' => 'Testimonials Section',
                        'visible'     => array( 'select', 'Testimonials' ),
                    ),
                    array (
                        'id'     => 'facts',
                        'type'   => 'group',
                        'name'   => 'Facts',
                        'fields' => array(
                            array (
                                'id'   => 'title',
                                'type' => 'text',
                                'name' => 'Title Fact',
                            ),
                            array (
                                'id'   => 'textarea_2',
                                'type' => 'textarea',
                                'name' => 'Description Fact',
                            ),
                            array (
                                'id'     => 'group_2',
                                'type'   => 'group',
                                'name'   => 'Fact Box',
                                'fields' => array(
                                    array (
                                        'id'   => 'text_2',
                                        'type' => 'text',
                                        'name' => 'Title',
                                    ),
                                    array (
                                        'id'   => 'number_2',
                                        'type' => 'number',
                                        'name' => 'Amount',
                                    ),
                                ),
                            ),
                        ),
                        'collapsible' => true,
                        'group_title' => 'Facts Section',
                        'visible' => array( 'select', 'Facts' ),
                    ),
                ),
                'clone'       => true,
                'collapsible' => true,
                'save_state'  => true,
                'group_title' => 'Choose which section you want',
            ),
        ),
    );
    return $meta_boxes;
}