WordPress: importare le immagini caricate tramite FTP nella Media Library

In WordPress possiamo importare le immagini caricate tramite FTP nella Media Library.

La soluzione è la seguente:

function my_import_images() {
    $path = $_SERVER['DOCUMENT_ROOT'] . '/images';
    $scanned_directory = array_diff( scandir( $path ), array( '..', '.' ) );
    foreach ( $scanned_directory as $file ) {
        if ( preg_match( '/(jpe?g|png|gif|bmp)$/', $file ) ) {
            $filename = $path . '/' . $file;
            $upload_file = wp_upload_bits( basename( $filename ), null, file_get_contents( $filename ) );
            if ( !$upload_file['error'] ) {
                $wp_filetype = wp_check_filetype( basename( $filename ), null );
                $attachment = array(
                    'post_mime_type' => $wp_filetype['type'],
                    'post_parent' => 0,
                    'post_title' => preg_replace( '/\.[^.]+$/', '', basename( $filename ) ),
                    'post_content' => '',
                    'post_status' => 'inherit'
                );
                $attachment_id = wp_insert_attachment( $attachment, $upload_file['file'], 0 );
                if ( !is_wp_error( $attachment_id ) ) {
                    require_once( ABSPATH . 'wp-admin/includes/image.php' );
                    $attachment_data = wp_generate_attachment_metadata( $attachment_id, $upload_file['file'] );
                    wp_update_attachment_metadata( $attachment_id, $attachment_data );
                }
            }
        }
    }

}