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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 |
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1351 |
|
1352 | /** |
1353 | * Filter the whitelist of hosts to redirect to. |
1354 | * |
1355 | * @since 2.3.0 |
1356 | * |
1357 | * @param array $hosts An array of allowed hosts. |
1358 | * @param bool|string $host The parsed host; empty if not isset. |
1359 | */ |
1360 | $allowed_hosts = (array) apply_filters( 'allowed_redirect_hosts', array($wpp['host']), isset($lp['host']) ? $lp['host'] : '' ); |
1361 |
|
1362 | if ( isset($lp['host']) && ( !in_array($lp['host'], $allowed_hosts) && $lp['host'] != strtolower($wpp['host'])) ) |
1363 | $location = $default; |
1364 |
|
1365 | return $location; |
1366 | } |
1367 | endif; |
1368 |
|
1369 | if ( ! function_exists('wp_notify_postauthor') ) : |