WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 430 | global $wp_rewrite; |
| 431 | |
| 432 | /** |
| 433 | * Filter the URL to derive the post ID from. |
| 434 | * |
| 435 | * @since 2.2.0 |
| 436 | * |
| 437 | * @param string $url The URL to derive the post ID from. |
| 438 | */ |
| 439 | $url = apply_filters( 'url_to_postid', $url ); |
| 440 | |
| 441 | // First, check to see if there is a 'p=N' or 'page_id=N' to match against |
| 442 | if ( preg_match('#[?&](p|page_id|attachment_id)=(\d+)#', $url, $values) ) { |
| 443 | $id = absint($values[2]); |
| 444 | if ( $id ) |
| 445 | return $id; |
| 446 | } |
| 447 | |
| 448 | // Check to see if we are using rewrite rules |