attachment_url_to_postid

apply_filters('attachment_url_to_postid') is found 1 times:

• /wp-includes/media.php line 5355

  	 *
  	 * @param int|null $post_id The post_id (if any) found by the function.
  	 * @param string   $url     The URL being looked up.
  	 */
  	return (int) apply_filters( 'attachment_url_to_postid', $post_id, $url );
  }
  
  /**
   * Returns the URLs for CSS files used in an iframe-sandbox'd TinyMCE media view.
   *
   * @since 4.0.0
  

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