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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 |
|---|---|
| 322 | |
| 323 | /** |
| 324 | * Filter the returned, maybe-linked embed URL. |
| 325 | * |
| 326 | * @since 2.9.0 |
| 327 | * |
| 328 | * @param string $output The linked or original URL. |
| 329 | * @param string $url The original URL. |
| 330 | */ |
| 331 | return apply_filters( 'embed_maybe_make_link', $output, $url ); |
| 332 | } |
| 333 | } |
| 334 | $GLOBALS['wp_embed'] = new WP_Embed(); |
| 335 | |