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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 |
|---|---|
| 4683 | /** |
| 4684 | * Filters the list of media attached to the given post. |
| 4685 | * |
| 4686 | * @since 3.6.0 |
| 4687 | * |
| 4688 | * @param WP_Post[] $children Array of media attached to the given post. |
| 4689 | * @param string $type Mime type of the media desired. |
| 4690 | * @param WP_Post $post Post object. |
| 4691 | */ |
| 4692 | return (array) apply_filters( 'get_attached_media', $children, $type, $post ); |
| 4693 | } |
| 4694 | |
| 4695 | /** |
| 4696 | * Check the content HTML for a audio, video, object, embed, or iframe tags. |
| 4697 | * |
| 4698 | * @since 3.6.0 |
| 4699 | * |
| 4700 | * @param string $content A string of HTML which might contain media elements. |
| 4701 | * @param string[] $types An array of media types: 'audio', 'video', 'object', 'embed', or 'iframe'. |