Check the URL to avoid PHP warnings. ref: https://wordpress.org/suppo…

…rt/topic/add-check-before-strpos/ (#579)
Automattic · Aug 7, 2018 · bed4fcc · bed4fcc
1 parent 9e3a4fc
commit bed4fcc
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/wp-cache-base.php b/wp-cache-base.php
@@ -17,7 +17,7 @@
 			$base = '';
 		}
 		$request_uri = str_replace( '..', '', preg_replace( '/[ <>\'\"\r\n\t\(\)]/', '', $_SERVER['REQUEST_URI'] ) );
-		if ( strpos( $request_uri, '/', 1 ) ) {
+		if ( strlen( $request_uri ) > 0 && strpos( $request_uri, '/', 1 ) ) {
 			if ( $base == '/' ) {
 				$blogcacheid = substr( $request_uri, 1, strpos( $request_uri, '/', 1 ) - 1 );
 			} else {