Regular Exp pattern

Can anyone, please help me with a reg exp for this:

<pre style="color: red">
<?php
phpinfo();
?>
</pre>

I want to look for the first pre tag and for the second one, take only what is between those and to replace all < > tags with &gt; and &lt; .

Thank you.

 

If your page is php, than use single quotes to show other php code

 

Something like that will transform $text into what you desire.

preg_match('@(<pre(?:>|\s[^>]*?>))(.*?)(</pre>)@ims',$text,$res);
$replace=array('&gt;','&lt;');
$search=array('|>|','|<|');
$newtext=preg_replace($search,$replace,$res[2]);

PHP:

or

preg_match('@(<pre(?:>|\s[^>]*?>))(.*?)(</pre>)@ims',$text,$res);
$newtext=htmlentities($res[2]);

PHP:

 

Thank you, but if I have some text before <pre> and after </pre> tags, what will be the reg exp?