Remove all the line breaks from the html source

Question

Well I know obfuscation is a bad idea. But I want all of my html code to come in one long single line. All the html tags are generated through PHP, so I think its possible.

Answer 1

This is an improved function of the above. It adds text area protection and also anything that is a tag remains untouched.

I also removed strlen in the loop (its static).

This might run faster as a one pass filter to check for any of the protected parts. For such a small protected_parts array it's going to be more efficient than looping through the $str four times.

Also this doesn't fix: class = " " (the extra spaces between = and ") as its stuff inside the tags.

function MinifyHTML($str) {
$protected_parts = array('
,
',',', '<,>');
$extracted_values = array();
$i = 0;
foreach ($protected_parts as $part) {
    $finished = false;
    $search_offset = $first_offset = 0;
    $end_offset = 1;
    $startend = explode(',', $part);
    if (count($startend) === 1) $startend[1] = $startend[0];
    $len0 = strlen($startend[0]); $len1 = strlen($startend[1]);
    while ($finished === false) {
        $first_offset = strpos($str, $startend[0], $search_offset);

        if ($first_offset === false) $finished = true;
        else {
            $search_offset = strpos($str, $startend[1], $first_offset + $len0);
            $extracted_values[$i] = substr($str, $first_offset + $len0, $search_offset - $first_offset - $len0);
            $str = substr($str, 0, $first_offset + $len0).'$$#'.$i.'$$'.substr($str, $search_offset);
            $search_offset += $len1 + strlen((string)$i) + 5 - strlen($extracted_values[$i]);
            ++$i;
        }
    }
}
$str = preg_replace("/\s/", " ", $str);
$str = preg_replace("/\s{2,}/", " ", $str);
$replace = array('> <'=>'><', ' >'=>'>','< '=>'<',''