Allow tests to works without php short-tags

Author: kylekatarnls

tests/helpers.php

@@ -270,7 +270,7 @@ public function testDotHelperWithArrayPrototype()
         $items = array(2, 4, 6);
         eval(
             $jsPhpize->compile('items.forEach(function (item) {') .
-            ' ?><?= ' . $jsPhpize->compile('item') . ' ?><?php ' .
+            ' ?><?php echo ' . $jsPhpize->compile('item') . ' ?><?php ' .
             $jsPhpize->compile('})') .
             ' ?>'
         );