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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 |
|---|---|
| 1929 | * |
| 1930 | * @since 3.6.0 |
| 1931 | * |
| 1932 | * @param string $output Video shortcode HTML output. |
| 1933 | * @param array $atts Array of video shortcode attributes. |
| 1934 | * @param string $video Video file. |
| 1935 | * @param int $post_id Post ID. |
| 1936 | * @param string $library Media library used for the video shortcode. |
| 1937 | */ |
| 1938 | return apply_filters( 'wp_video_shortcode', $output, $atts, $video, $post_id, $library ); |
| 1939 | } |
| 1940 | add_shortcode( 'video', 'wp_video_shortcode' ); |
| 1941 | |
| 1942 | /** |
| 1943 | * Displays previous image link that has the same post parent. |
| 1944 | * |
| 1945 | * @since 2.5.0 |
| 1946 | * |
| 1947 | * @see adjacent_image_link() |