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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 |
|---|---|
| 1318 | * |
| 1319 | * Allows applications to identify themselves when they're doing a redirect. |
| 1320 | * |
| 1321 | * @since 5.1.0 |
| 1322 | * |
| 1323 | * @param string $x_redirect_by The application doing the redirect. |
| 1324 | * @param int $status Status code to use. |
| 1325 | * @param string $location The path to redirect to. |
| 1326 | */ |
| 1327 | $x_redirect_by = apply_filters( 'x_redirect_by', $x_redirect_by, $status, $location ); |
| 1328 | if ( is_string( $x_redirect_by ) ) { |
| 1329 | header( "X-Redirect-By: $x_redirect_by" ); |
| 1330 | } |
| 1331 | |
| 1332 | header( "Location: $location", true, $status ); |
| 1333 | |
| 1334 | return true; |
| 1335 | } |
| 1336 | endif; |