Minify html output with simple php function

It’s always a pleasure to have html tags tidy and attached to one another. especially if these html tags are yours in your website. To have this we can do with a simple php function. Place the code below at the top of header php page or index page.

<?php
function sanitize_output($buffer) {
  $search = array(
    '/\>[^\S ]+/s',
    '/[^\S ]+\</s',
    '/(\s)+/s',
    '/<!--(.|\s)*?-->/'
  );
  $replace = array(
    '>',
    '<',
    '\',
    ''
  );
  $buffer = preg_replace($search, $replace, $buffer);
  return $buffer;
}
ob_start("sanitize_output");
?>