Use str_ends_with() and str_starts_with()

Author: alexislefebvre

DependencyInjection/AddAnnotatedClassesToCachePass.php

@@ -117,7 +117,7 @@ private function patternsToRegexps(array $patterns): array
             $regex = strtr($regex, ['\\*\\*' => '.*?', '\\*' => '[^\\\\]*?']);
 
             // If this class does not end by a slash, anchor the end
-            if ('\\' !== substr($regex, -1)) {
+            if (!str_ends_with($regex, '\\')) {
                 $regex .= '$';
             }