custom user avatar

gistfile1.txt

<?php
namespace WPExplorer\Avatars;

defined( 'ABSPATH' ) || exit;

class Self_Hosted {

	public function __construct() {
		add_filter( 'user_contactmethods', array( $this, 'add_option' ) );
		add_filter( 'pre_get_avatar', array( $this, 'alter_avatar' ), 1 , 3 );
	}

	public function add_option( $methods ) {
		$methods['user_avatar'] = 'WPExplorer - Author Avatar';
		return $methods;
	}

	public function alter_avatar( $avatar, $id_or_email, $args ) {

		$user_id = null;

		if ( is_numeric( $id_or_email ) ) {
			$user_id = $id_or_email;
		} else {
			if ( is_object( $id_or_email ) && 'WP_Comment' == get_class( $id_or_email ) ) {
				$id_or_email = $id_or_email->comment_author_email;
			}
			if ( is_email( $id_or_email ) ) {
				$user = get_user_by( 'email', $id_or_email );
				if ( $user && is_object( $user ) ) {
					$user_id = $user->ID;
				}
			}
		}

		if ( $user_id ) {

			$avatar_url = $this->get_local_avatar_url( $user_id );

			if ( ! empty( $avatar_url ) ) {

				if ( empty( $user ) ) {
					$user = get_user_by( 'id', $user_id );
				}

				$custom_avatar_html = $this->avatar_html( $avatar_url, $user, $args );

				if ( $custom_avatar_html ) {
					return $custom_avatar_html;
				}

			}

		}

		return $avatar;
	}

	public function get_local_avatar_url( $user_id = 0 ) {

		$avatar_url = get_the_author_meta( 'user_avatar', $user_id );

		if ( is_numeric( $avatar_url ) ) {
			$avatar_url = wp_get_attachment_url( $avatar_url );
		}

		return $avatar_url;

	}

	public function avatar_html( $avatar = '', $user = '', $args = array() ) {

		$size = isset( $args['size'] ) ? absint( $args['size'] ) : 50;

		$class = 'avatar photo';

		if ( ! empty( $args['class' ] ) ) {
			$class .= ' ' . esc_attr( $args['class'] );
		}

		return '<img src="' . esc_url( $avatar ) . '" class="' . esc_attr( $class ) . '" alt="' . esc_attr( $user->display_name ) . ' Avatar"  height="' . esc_attr( $size ) . '" width="' . esc_attr( $size ) . '" loading="lazy" />';

	}

}