undo html

[vividona]

I am using htmlspecialchars() function to change some of html tags

Now I need to highlight my php codes.

public function bb_php($string)
	{
		string = str_replace ( '&', '&', $string );
        $string = str_replace ( ''', '', $string );
        $string = str_replace ( '"', '', $string );
        $string = str_replace ( '&lt;', '<', $string );
        $string = str_replace ( '&gt;', '>', $string );

	$match = array('#\[php\](.*?)\[\/php\]#se');
	$replace = array("'<div>'.highlight_string(stripslashes('$1'), true).'</div>'");

	return preg_replace($match, $replace, $string);
}

This code undo html tags from the whole page.
I need to remove it only from php codes

[Weedpacket]

It might be more convenient to take the PHP code out, escape what's left, and then put the highlighted code back in. I did something a little like that here.

Incidentally, you might not need a <div> - notice that highlight_string puts everything in a <code> element anyway.

[Safit_P]

Here is a quick little piece of code from php tutorials that can be modified for any specific HTML tag you want to remove from a string. I am using it below to remove an image tag.

<?php
$string = 'Here is your content with an image tag <img src="http://img.com.png" alt="Image" />' ;
$string = preg_replace("/<img[^>]+\>/i", "", $string); 

echo $string // will output "Here is your content with an image tag" without the image tag
?> 

You can replace the img in the preg_replace() function for it to work with whichever HTML tag you wish.