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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 |
|---|---|
| 395 | |
| 396 | /** |
| 397 | * Filter the URL to embed a specific post. |
| 398 | * |
| 399 | * @since 4.4.0 |
| 400 | * |
| 401 | * @param string $embed_url The post embed URL. |
| 402 | * @param WP_Post $post The corresponding post object. |
| 403 | */ |
| 404 | return esc_url_raw( apply_filters( 'post_embed_url', $embed_url, $post ) ); |
| 405 | } |
| 406 | |
| 407 | /** |
| 408 | * Retrieves the oEmbed endpoint URL for a given permalink. |
| 409 | * |
| 410 | * Pass an empty string as the first argument to get the endpoint base URL. |
| 411 | * |
| 412 | * @since 4.4.0 |
| 413 | * |