Stripping HTML Comments With PHP But Leaving Conditionals

Question

I\'m currently using PHP and a regular expression to strip out all HTML comments from a page. The script works well... a little too well. It strips out all comments includin

Answer 1

If you can't get it to work with one regular expression or you find you want to preserve more comments you could use preg_replace_callback. You can then define a function to handle the comments individually.

/U', 'comment_replace_func', $buffer);
}

function comment_replace_func($m) {
    if (preg_match( '/^\<\!--\[if \!/i', $m[0])) {
        return $m[0];   
    }              

    return '';
}   

ob_start("callback");
?>

... HTML source goes here ...