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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 |
|---|---|
| 420 | |
| 421 | /** |
| 422 | * Filters the URL to embed a specific post. |
| 423 | * |
| 424 | * @since 4.4.0 |
| 425 | * |
| 426 | * @param string $embed_url The post embed URL. |
| 427 | * @param WP_Post $post The corresponding post object. |
| 428 | */ |
| 429 | return sanitize_url( apply_filters( 'post_embed_url', $embed_url, $post ) ); |
| 430 | } |
| 431 | |
| 432 | /** |
| 433 | * Retrieves the oEmbed endpoint URL for a given permalink. |
| 434 | * |
| 435 | * Pass an empty string as the first argument to get the endpoint base URL. |
| 436 | * |
| 437 | * @since 4.4.0 |
| 438 | * |