Untitled

<?php
define("CHARACTERS", "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
function RandomString() {
    $randstring = '';
    for ($i = 0; $i < 32; $i++) {
        $randstring .= CHARACTERS[rand(0, 61)];
    }
    return $randstring;
}

$time_start = time();

for($i = 0; $i<1000000; $i++) {
  md5(RandomString());
}
$time_end = time();
$execution_time = ($time_end - $time_start);
?>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <meta charset="UTF-8">
        <title>Test PHP Page</title>
        <link href="http://fonts.googleapis.com/css?family=Open+Sans:400,400italic,700,700italic&amp;subset=latin,latin-ext,cyrillic-ext" rel="stylesheet" type="text/css">
        <link rel="stylesheet" href="/css/style.css">
        </head>
    <body>
        <div class="page-wrapper">
            <div id="page-content">This shit had <?php echo $execution_time; ?> seconds to execute</div>
        </div>
    </body>
</html>