Source View: wp_get_attachment_url

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: apply_filters( "hook_name", "what_to_filter" ).

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
2399      $post_id = (int) $post_id;
2400      if ( !$post =& get_post( $post_id ) )
2401           return false;
2402
2403      $url = get_the_guid( $post->ID );
2404
2405      if ( 'attachment' != $post->post_type || !$url )
2406           return false;
2407
2408      return apply_filters( 'wp_get_attachment_url', $url, $post->ID );
2409 }
2410
2411 /**
2412  * wp_get_attachment_thumb_file() - Retrieve thumbnail for an attachment
2413  *
2414  * {@internal Missing Long Description}}
2415  *
2416  * @package WordPress
2417  * @subpackage Post