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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 |
|---|---|
| 1826 | * |
| 1827 | * @since 3.6.0 |
| 1828 | * |
| 1829 | * @param string $html Video shortcode HTML output. |
| 1830 | * @param array $atts Array of video shortcode attributes. |
| 1831 | * @param string $video Video file. |
| 1832 | * @param int $post_id Post ID. |
| 1833 | * @param string $library Media library used for the video shortcode. |
| 1834 | */ |
| 1835 | return apply_filters( 'wp_video_shortcode', $html, $atts, $video, $post_id, $library ); |
| 1836 | } |
| 1837 | add_shortcode( 'video', 'wp_video_shortcode' ); |
| 1838 | |
| 1839 | /** |
| 1840 | * Display previous image link that has the same post parent. |
| 1841 | * |
| 1842 | * @since 2.5.0 |
| 1843 | * @param string $size Optional, default is 'thumbnail'. Size of image, either array or string. 0 or 'none' will default to post_title or $text; |
| 1844 | * @param string $text Optional, default is false. If included, link will reflect $text variable. |