Use a copy of the sub-array to get the last parenthesis opener as well

Author: rodrigoprimo

src/Standards/Squiz/Sniffs/Arrays/ArrayDeclarationSniff.php

@@ -52,8 +52,7 @@ public function process(File $phpcsFile, $stackPtr)
         ) {
             $nestedParens          = $tokens[$stackPtr]['nested_parenthesis'];
             $lastParenthesisCloser = end($nestedParens);
-            $lastParenthesisOpener = key($tokens[$stackPtr]['nested_parenthesis']);
-            reset($tokens[$stackPtr]['nested_parenthesis']);
+            $lastParenthesisOpener = key($nestedParens);
 
             if (isset($tokens[$lastParenthesisCloser]['parenthesis_owner']) === true
                 && $tokens[$tokens[$lastParenthesisCloser]['parenthesis_owner']]['code'] === T_FOREACH