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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 |
|---|---|
| 2938 | /** |
| 2939 | * Filter the |
| 2940 | * |
| 2941 | * @since 3.6.0 |
| 2942 | * |
| 2943 | * @param array $children Associative array of media attached to the given post. |
| 2944 | * @param string $type Mime type of the media desired. |
| 2945 | * @param mixed $post Post ID or object. |
| 2946 | */ |
| 2947 | return (array) apply_filters( 'get_attached_media', $children, $type, $post ); |
| 2948 | } |
| 2949 | |
| 2950 | /** |
| 2951 | * Check the content blob for an <audio>, <video> <object>, <embed>, or <iframe> |
| 2952 | * |
| 2953 | * @since 3.6.0 |
| 2954 | * |
| 2955 | * @param string $content A string which might contain media data. |
| 2956 | * @param array $types array of media types: 'audio', 'video', 'object', 'embed', or 'iframe' |