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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 |
|---|---|
| 5195 | /** |
| 5196 | * Filters the list of media attached to the given post. |
| 5197 | * |
| 5198 | * @since 3.6.0 |
| 5199 | * |
| 5200 | * @param WP_Post[] $children Array of media attached to the given post. |
| 5201 | * @param string $type Mime type of the media desired. |
| 5202 | * @param WP_Post $post Post object. |
| 5203 | */ |
| 5204 | return (array) apply_filters( 'get_attached_media', $children, $type, $post ); |
| 5205 | } |
| 5206 | |
| 5207 | /** |
| 5208 | * Checks the HTML content for an audio, video, object, embed, or iframe tags. |
| 5209 | * |
| 5210 | * @since 3.6.0 |
| 5211 | * |
| 5212 | * @param string $content A string of HTML which might contain media elements. |
| 5213 | * @param string[] $types An array of media types: 'audio', 'video', 'object', 'embed', or 'iframe'. |