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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 |
|---|---|
| 490 | * Filters the embed HTML output for a given post. |
| 491 | * |
| 492 | * @since 4.4.0 |
| 493 | * |
| 494 | * @param string $output The default iframe tag to display embedded content. |
| 495 | * @param WP_Post $post Current post object. |
| 496 | * @param int $width Width of the response. |
| 497 | * @param int $height Height of the response. |
| 498 | */ |
| 499 | return apply_filters( 'embed_html', $output, $post, $width, $height ); |
| 500 | } |
| 501 | |
| 502 | /** |
| 503 | * Retrieves the oEmbed response data for a given post. |
| 504 | * |
| 505 | * @since 4.4.0 |
| 506 | * |
| 507 | * @param WP_Post|int $post Post object or ID. |
| 508 | * @param int $width The requested width. |