hyperlink - postLink() in cakePHP 3.x -

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i created crud operations in cakephp 3.x. deleting records using postlink() function. 

$this->form->postlink("<i class='fa fa-remove'></i>", ['action' => 'delete', $role->id], ['escape' => false],['title' => 'delete', 'class' => 'users'])]);

it doesn't set class delete icon. need set class name delete icon. can create own dialog box. if removed escape attribute means create class doesn't display icon. changed order of escape , class not working. please me

did use proper ide? did check amount of attributes may use postlink()? documentation states: postlink($title, $url, $options). why using forth then? of course 1 ignored.

so should instead:

$this->form->postlink(     "<i class='fa fa-remove'></i>", // first     ['action' => 'delete', $role->id],  // second     ['escape' => false, 'title' => 'delete', 'class' => 'users'] // third );

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