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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 |
|---|---|
| 318 | * Filter the video embed output. |
| 319 | * |
| 320 | * @since 3.6.0 |
| 321 | * |
| 322 | * @param string $video Video embed output. |
| 323 | * @param array $attr An array of embed attributes. |
| 324 | * @param string $url The original URL that was matched by the regex. |
| 325 | * @param array $rawattr The original unmodified attributes. |
| 326 | */ |
| 327 | return apply_filters( 'wp_embed_handler_video', $video, $attr, $url, $rawattr ); |
| 328 | } |
| 329 | |
| 330 | /** |
| 331 | * Registers the oEmbed REST API route. |
| 332 | * |
| 333 | * @since 4.4.0 |
| 334 | */ |
| 335 | function wp_oembed_register_route() { |
| 336 | $controller = new WP_oEmbed_Controller(); |