Redirects: Temporarily redirect w.org/playground to the correct locat…

…ion.

This is a 302 as the playground will be available at this url directly in the future.

See https://wordpress.slack.com/archives/C02QB8GMM/p1702348887775449
See WordPress/wporg-main-2022#355


git-svn-id: https://meta.svn.wordpress.org/sites/trunk@13050 74240141-8908-4e6f-9713-ba540dce6ec7

wordpress.org/public_html/wp-content/mu-plugins/pub/wporg-redirects.php

@@ -56,16 +56,24 @@
 
 				// Data Liberation
 				'/and' => '/data-liberation/',
+
+				// Playground, temporarily.
+				'/playground' => [ 302, 'https://developer.wordpress.org/playground/' ]
 			];
 
 			foreach ( $path_redirects as $test => $redirect ) {
 				if ( 0 === strpos( $_SERVER['REQUEST_URI'], $test ) ) {
 
+					$code = 301;
+					if ( is_array( $redirect ) ) {
+						list( $code, $redirect ) = $redirect;
+					}
+
 					// override nocache_headers();
 					header_remove( 'expires' );
 					header_remove( 'cache-control' );
 
-					wp_safe_redirect( $redirect, 301 );
+					wp_safe_redirect( $redirect, $code );
 					exit;
 				}
 			}