Skip test if PHP version < 5.3.4

* tests/unit-tests/src/ILS/Driver/SymphonyTest.php
(testBadBaseUrl): Skip test if PHP version < 5.3.4.

module/VuFind/tests/unit-tests/src/ILS/Driver/SymphonyTest.php

@@ -56,6 +56,10 @@ class SymphonyTest extends \VuFindTest\Unit\TestCase
      */
     public function testBadBaseUrl()
     {
+        if (!version_compare(\PHP_VERSION, '5.3.4', '>=')) {
+            $this->markTestSkipped('Test requires PHP >= 5.3.4 (see VUFIND-660)');
+        }
+
         // Without SOAP functionality, we can't proceed:
         if (!class_exists('SoapClient')) {
             $this->markTestSkipped();