How to change the iframe width and height in PHP - php

Question

Can any body tell how to change the width & height of iframe in php.
in database i am saving below format.while i am displaying i want to fixed size.
this is the iframe content
<iframe width="400" height="225" src="http://www.youtube.com/embed/c7ct6pNOvEE?feature=oembed" frameborder="0" allowfullscreen></iframe>
Here width & height changes dynamically based on site.then how to convert the width to 500 & height to 350 in php
Thanks in advance

Answer 1

You should just use CSS
html, body, iframe {
height: 100%;
width: 100%;
}
Edit: Next time you should define your question PROPERLY and add a proper descriotion before you post it.
Anyway, since you have the sizes in the database you can simply use echo's to change the size. First you need to get the width and height from the database, then echo it in your HTML.
<?php
$iframe = html_entity_decode($post['url']);
$newWidth = 610;
$newHeight = 450;
?>
<iframe
src="<?php echo $iframe; ?>"
height="<?php echo $newHeight; ?>"
width="<?php echo $newWidth; ?>"
frameborder="0" allowfullscreen>
</iframe>
Edit v12351524274573523
$iframe = '<iframe width="400" height="225" src="youtube.com/embed/c7ct6pNOvEE?feature=oembed" frameborder="0" allowfullscreen></iframe>';
$src = html_entity_decode($post['url']);
$height = 450;
$width = 610;
// add autoplay
$src = $src . (strstr($src, '?') ? '&': '?') . 'autoplay=1';
$iframe = preg_replace('/src="(.*?)"/i', 'src="' . $src .'"', $iframe);
$iframe = preg_replace('/height="(.*?)"/i', 'height="' . $height .'"', $iframe);
$iframe = preg_replace('/width="(.*?)"/i', 'width="' . $width .'"', $iframe);