- var_dump: documentation ( source)
- preg_match: documentation ( source)
<?php
$msscodes = [];
preg_match('#<style type="text/mss">(.*)</style>#i', __FILE__, $msscodes);
var_dump($msscodes);
echo(__FILE__);
?>
<!DOCTYPE html>
<html>
<head>
<title>MSS</title>
<style type="text/mss">
p.class1 {
color: blue;
}
p.class2 {
color: red;
}
</style>
</head>
<body>
<p class="class1">Hello World!</p>
<p class="class2">This document use MSS.</p>
</body>
</html>