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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 |
|---|---|
| 538 | * Filters the embed HTML output for a given post. |
| 539 | * |
| 540 | * @since 4.4.0 |
| 541 | * |
| 542 | * @param string $output The default iframe tag to display embedded content. |
| 543 | * @param WP_Post $post Current post object. |
| 544 | * @param int $width Width of the response. |
| 545 | * @param int $height Height of the response. |
| 546 | */ |
| 547 | return apply_filters( 'embed_html', $output, $post, $width, $height ); |
| 548 | } |
| 549 | |
| 550 | /** |
| 551 | * Retrieves the oEmbed response data for a given post. |
| 552 | * |
| 553 | * @since 4.4.0 |
| 554 | * @since 6.8.0 Output was adjusted to only embed if the post type supports it. |
| 555 | * |
| 556 | * @param WP_Post|int $post Post ID or post object. |