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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 |
|---|---|
| 4659 | /** |
| 4660 | * Filters the list of media attached to the given post. |
| 4661 | * |
| 4662 | * @since 3.6.0 |
| 4663 | * |
| 4664 | * @param WP_Post[] $children Array of media attached to the given post. |
| 4665 | * @param string $type Mime type of the media desired. |
| 4666 | * @param WP_Post $post Post object. |
| 4667 | */ |
| 4668 | return (array) apply_filters( 'get_attached_media', $children, $type, $post ); |
| 4669 | } |
| 4670 | |
| 4671 | /** |
| 4672 | * Check the content HTML for a audio, video, object, embed, or iframe tags. |
| 4673 | * |
| 4674 | * @since 3.6.0 |
| 4675 | * |
| 4676 | * @param string $content A string of HTML which might contain media elements. |
| 4677 | * @param string[] $types An array of media types: 'audio', 'video', 'object', 'embed', or 'iframe'. |