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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 |
|---|---|
| 1904 | 'posts_per_page' => -1, |
| 1905 | 'orderby' => 'menu_order', |
| 1906 | 'order' => 'ASC', |
| 1907 | ); |
| 1908 | |
| 1909 | $args = apply_filters( 'get_attached_media_args', $args, $type, $post ); |
| 1910 | |
| 1911 | $children = get_children( $args ); |
| 1912 | |
| 1913 | return (array) apply_filters( 'get_attached_media', $children, $type, $post ); |
| 1914 | } |
| 1915 | |
| 1916 | /** |
| 1917 | * Check the content blob for an <audio>, <video> <object>, <embed>, or <iframe> |
| 1918 | * |
| 1919 | * @since 3.6.0 |
| 1920 | * |
| 1921 | * @param string $content A string which might contain media data. |
| 1922 | * @param array $types array of media types: 'audio', 'video', 'object', 'embed', or 'iframe' |