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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 |
|---|---|
| 2640 | * |
| 2641 | * @since 3.6.0 |
| 2642 | * |
| 2643 | * @param string $output Video shortcode HTML output. |
| 2644 | * @param array $atts Array of video shortcode attributes. |
| 2645 | * @param string $video Video file. |
| 2646 | * @param int $post_id Post ID. |
| 2647 | * @param string $library Media library used for the video shortcode. |
| 2648 | */ |
| 2649 | return apply_filters( 'wp_video_shortcode', $output, $atts, $video, $post_id, $library ); |
| 2650 | } |
| 2651 | add_shortcode( 'video', 'wp_video_shortcode' ); |
| 2652 | |
| 2653 | /** |
| 2654 | * Displays previous image link that has the same post parent. |
| 2655 | * |
| 2656 | * @since 2.5.0 |
| 2657 | * |
| 2658 | * @see adjacent_image_link() |