If you want to make your page more reliable ,then Use HtmlHelper instead of html tag in your (xyz.ctp). CakePHP Helper will enable your application more light & flexible. By using these HtmlHelper ,we can create well formed markup in our Cake PHP page.

html helper for image in Cake PHP

echo $this->Html->image('logo.png', array('alt' => 'Mylogo'));

//output in view source: <img src="/img/logo.png" alt="Mylogo" />

html helper for link

echo $this->Html->link(
    'Enter',
    '/pages/home',
    array('class' => 'button', 'target' => 'blank')
);

//output in view source (ctrl+u):  <a href="/pages/home" class="button" target="blank">Enter</a>

html helper for div tag

<?php
echo $this->Html->div('error', 'this is html helper div.');
?>

// Output: <div class="error">this is html helper div.</div>

Html helper: Script

echo $this->Html->script('http://code.jquery.com/jquery.min.js');

//output: <script type="text/JavaScript" href="http://code.jquery.com/jquery.min.js"> </script>