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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 |
|---|---|
| 428 | $location = wp_sanitize_redirect($location); |
| 429 | |
| 430 | // browsers will assume 'http' is your protocol, and will obey a redirect to a URL starting with '//' |
| 431 | if ( substr($location, 0, 2) == '//' ) |
| 432 | $location = 'http:' . $location; |
| 433 | |
| 434 | $lp = parse_url($location); |
| 435 | $wpp = parse_url(get_option('home')); |
| 436 | |
| 437 | $allowed_hosts = (array) apply_filters('allowed_redirect_hosts', array($wpp['host']), $lp['host']); |
| 438 | |
| 439 | if ( isset($lp['host']) && !in_array($lp['host'], $allowed_hosts) ) |
| 440 | $location = get_option('siteurl') . '/wp-admin/'; |
| 441 | |
| 442 | wp_redirect($location, $status); |
| 443 | } |
| 444 | endif; |
| 445 | |
| 446 | if ( !function_exists('wp_get_cookie_login') ): |