WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )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.
| Line | Code |
|---|---|
| 3585 | } |
| 3586 | } |
| 3587 | |
| 3588 | if ( empty($url) ) //If any of the above options failed, Fallback on the GUID as used pre-2.7, not recomended to rely upon this. |
| 3589 | $url = get_the_guid( $post->ID ); |
| 3590 | |
| 3591 | if ( 'attachment' != $post->post_type || empty($url) ) |
| 3592 | return false; |
| 3593 | |
| 3594 | return apply_filters( 'wp_get_attachment_url', $url, $post->ID ); |
| 3595 | } |
| 3596 | |
| 3597 | /** |
| 3598 | * Retrieve thumbnail for an attachment. |
| 3599 | * |
| 3600 | * @since 2.1.0 |
| 3601 | * |
| 3602 | * @param int $post_id Attachment ID. |
| 3603 | * @return mixed False on failure. Thumbnail file path on success. |