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 |
|---|---|
| 369 | if ( !function_exists('lowercase_octets') ) { |
| 370 | function lowercase_octets($matches) { |
| 371 | return strtolower( $matches[0] ); |
| 372 | } |
| 373 | } |
| 374 | $requested_url = preg_replace_callback('|%[a-fA-F0-9][a-fA-F0-9]|', 'lowercase_octets', $requested_url); |
| 375 | } |
| 376 | |
| 377 | // Note that you can use the "redirect_canonical" filter to cancel a canonical redirect for whatever reason by returning FALSE |
| 378 | $redirect_url = apply_filters('redirect_canonical', $redirect_url, $requested_url); |
| 379 | |
| 380 | if ( !$redirect_url || $redirect_url == $requested_url ) // yes, again -- in case the filter aborted the request |
| 381 | return false; |
| 382 | |
| 383 | if ( $do_redirect ) { |
| 384 | // protect against chained redirects |
| 385 | if ( !redirect_canonical($redirect_url, false) ) { |
| 386 | wp_redirect($redirect_url, 301); |
| 387 | exit(); |