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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 |
|---|---|
| 304 | } |
| 305 | endif; |
| 306 | |
| 307 | // Cookie safe redirect. Works around IIS Set-Cookie bug. |
| 308 | // http://support.microsoft.com/kb/q176113/ |
| 309 | if ( !function_exists('wp_redirect') ) : |
| 310 | function wp_redirect($location, $status = 302) { |
| 311 | global $is_IIS; |
| 312 | |
| 313 | $location = apply_filters('wp_redirect', $location, $status); |
| 314 | |
| 315 | if ( !$location ) // allows the wp_redirect filter to cancel a redirect |
| 316 | return false; |
| 317 | |
| 318 | $location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%]|i', '', $location); |
| 319 | $location = wp_kses_no_null($location); |
| 320 | |
| 321 | $strip = array('%0d', '%0a'); |
| 322 | $location = str_replace($strip, '', $location); |