attachment_url_to_postid | function | WordPress

perform attachment_url_to_postid( $url ) {

international $wpdb;

$path = $url;

$site_url = parse_url( $dir[‘url’] );

$image_path = parse_url( $path );

//pressure the protocols to match if wanted

if ( isset( $image_path[‘scheme’] ) && ( $image_path[‘scheme’] !== $site_url[‘scheme’] ) ) {

$path = str_replace( $image_path[‘scheme’], $site_url[‘scheme’], $path );

}

if ( 0 === strpos( $path, $dir[‘baseurl’] . ‘/’ ) ) {

$path = substr( $path, strlen( $dir[‘baseurl’] . ‘/’ ) );

}

$sql = $wpdb->put together(

“SELECT post_id FROM $wpdb->postmeta WHERE meta_key = ‘_wp_attached_file’ AND meta_value = %s”,

$path

);

$post_id = $wpdb->get_var( $sql );

/**

* Filters an attachment id discovered by URL.

*

* @since 4.2.0

*

* @param int|null $post_id The post_id (if any) discovered by the perform.

* @param string $url The URL being regarded up.

*/

}