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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 |
|---|---|
| 1378 | |
| 1379 | /** |
| 1380 | * Filters the redirect HTTP response status code to use. |
| 1381 | * |
| 1382 | * @since 2.3.0 |
| 1383 | * |
| 1384 | * @param int $status The HTTP response status code to use. |
| 1385 | * @param string $location The path or URL to redirect to. |
| 1386 | */ |
| 1387 | $status = apply_filters( 'wp_redirect_status', $status, $location ); |
| 1388 | |
| 1389 | if ( ! $location ) { |
| 1390 | return false; |
| 1391 | } |
| 1392 | |
| 1393 | if ( $status < 300 || 399 < $status ) { |
| 1394 | wp_die( __( 'HTTP redirect status code must be a redirection code, 3xx.' ) ); |
| 1395 | } |
| 1396 | |