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CountViewHelper.php
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1 <?php
2 namespace TYPO3\CMS\Fluid\ViewHelpers;
3 
4 /* *
5  * This script is backported from the TYPO3 Flow package "TYPO3.Fluid". *
6  * *
7  * It is free software; you can redistribute it and/or modify it under *
8  * the terms of the GNU Lesser General Public License, either version 3 *
9  * of the License, or (at your option) any later version. *
10  * *
11  * The TYPO3 project - inspiring people to share! *
12  * */
13 
35 class CountViewHelper extends \TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper {
36 
40  protected $escapingInterceptorEnabled = FALSE;
41 
50  public function render($subject = NULL) {
51  if ($subject === NULL) {
52  $subject = $this->renderChildren();
53  }
54  if (is_object($subject) && !$subject instanceof \Countable) {
55  throw new \TYPO3\CMS\Fluid\Core\ViewHelper\Exception('CountViewHelper only supports arrays and objects implementing \Countable interface. Given: "' . get_class($subject) . '"', 1279808078);
56  }
57  return count($subject);
58  }
59 }