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 |
|---|---|
| 5150 | |
| 5151 | /** |
| 5152 | * Filter the attachment thumbnail URL. |
| 5153 | * |
| 5154 | * @since 2.1.0 |
| 5155 | * |
| 5156 | * @param string $url URL for the attachment thumbnail. |
| 5157 | * @param int $post_id Attachment ID. |
| 5158 | */ |
| 5159 | return apply_filters( 'wp_get_attachment_thumb_url', $url, $post->ID ); |
| 5160 | } |
| 5161 | |
| 5162 | /** |
| 5163 | * Verifies an attachment is of a given type. |
| 5164 | * |
| 5165 | * @since 4.2.0 |
| 5166 | * |
| 5167 | * @param string $type Attachment type. Accepts 'image', 'audio', or 'video'. |
| 5168 | * @param int|WP_Post $post_id Optional. Attachment ID. Default 0. |