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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 |
|---|---|
| 843 | * @uses apply_filters() Calls 'wp_redirect' hook on $location and $status. |
| 844 | * |
| 845 | * @param string $location The path to redirect to |
| 846 | * @param int $status Status code to use |
| 847 | * @return bool False if $location is not set |
| 848 | */ |
| 849 | function wp_redirect($location, $status = 302) { |
| 850 | global $is_IIS; |
| 851 | |
| 852 | $location = apply_filters('wp_redirect', $location, $status); |
| 853 | $status = apply_filters('wp_redirect_status', $status, $location); |
| 854 | |
| 855 | if ( !$location ) // allows the wp_redirect filter to cancel a redirect |
| 856 | return false; |
| 857 | |
| 858 | $location = wp_sanitize_redirect($location); |
| 859 | |
| 860 | if ( $is_IIS ) { |
| 861 | header("Refresh: 0;url=$location"); |