CakePHP 2.4:在html->link的确认消息中转义Javascript?

这就是我所拥有的:

<?php 
$textDelete = __('Delete' . ($index ? '' : ' This ' . $identifier));
$linkDelete = array('controller' => 'students', 'action' => 'delete', $id);
$confirmDelete = 'You are about to delete student:\n\n\x22'
                   . $student['Student']['last_name'] . ', ' 
                   . $student['Student']['first_name'] . ' ' 
                   . $student['Student']['middle_initial'] 
                   . '\x22\n\n  Are you sure?';

echo $this->Html->link(
                       $textDelete,
                       $linkDelete,
                       array('escape' => false),
                       $confirmDelete
                    );
 ?>

在我们升级到CakePHP 2.4之前,它工作得很好!现在,链接的确认消息(全部)显示了\n \n和\ x22,而不是引号符号或换行,有什么想法吗?