Source View: wp_get_attachment_url

To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).

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
3952                     $url = $uploads['baseurl'] . substr( $file, strpos($file, 'wp-content/uploads') + 18 );
3953                else
3954                     $url = $uploads['baseurl'] . "/$file"; //Its a newly uploaded file, therefor $file is relative to the basedir.
3955           }
3956      }
3957
3958      if ( empty($url) ) //If any of the above options failed, Fallback on the GUID as used pre-2.7, not recommended to rely upon this.
3959           $url = get_the_guid( $post->ID );
3960
3961      $url = apply_filters( 'wp_get_attachment_url', $url, $post->ID );
3962
3963      if ( empty( $url ) )
3964           return false;
3965
3966      return $url;
3967 }
3968
3969 /**
3970  * Retrieve thumbnail for an attachment.