apache2/require/file2.php

<?php session_start(); 
    setcookie('cDrei', array_key_exists("cDrei", $_COOKIE) ? $_COOKIE['cDrei'] + 1 : 0); 
?>
<html>
 <head>
  <title>require/file2.php blabla</title>
 </head>
 <body>
 <h1> require/file2.php blabla</h1>
   environment <ul>
     <?php $a = ["PHP_SELF", "HTTP_SESSION", "HTTP_HOST", "HTTP_REFERER" , "HTTP_USER_AGENT", "SERVER_NAME", "SERVER_ADDR", "SERVER_PORT", "REMOTE_HOST", "REMOTE_ADDR", "REMOTE_USER", "REMOTE_PORT", "REMOTE_IDENT", "REMOTE_PORT"];
        foreach ($a as $v) echo "<li> " . $v . " = " . apache_getenv($v) . " * " . (array_key_exists($v, $_SERVER) ? $_SERVER[$v] : "***notIn\$_SERVER" ) ."</li>"; 
        echo "<li> \$PHP_AUTH_USER = " . $PHP_AUTH_USER . "</li>";
?>
   </ul> session <ul>  <?php foreach ($_SESSION as $k => $v) echo "<li> " . $k . " = " . $v ."</li>"; 
            echo "<li> HTTP_SESSION[eins]  = " . apache_getenv("HTTP_SESSION")["eins"] . " *** _resp[][] </li>";
            echo "<li> HTTP_SESSION[zwei]  = " . apache_getenv("HTTP_SESSION")["zwei"] . " *** _resp[][]" . ' * ' . $_SESSION["zwei"] . "</li>";
            $_RESPONSE["HTTP_SESSION"]["eins"] = "sess val 1"; $_SESSION["zwei"] = "sess val 2";
            $_SESSION['drei'] =  array_key_exists("drei", $_SESSION) ? $_SESSION['drei'] + 1 : 0; 
            echo "<li> \$_SESSION[drei]  = " . $_SESSION["drei"] . "</li>"; ?>
   </ul> cookie <ul>  <?php foreach ($_COOKIE as $k => $v) echo "<li> " . $k . " = " . $v ."</li>"; ?> 
   </ul> server <ul>  <?php foreach ($_SERVER as $k => $v) echo "<li> " . $k . " = " . $v ."</li>"; ?>
   </ul> request <ul>  <?php foreach (apache_request_headers() as $k => $v) echo "<li> " . $k . " = " . $v ."</li>"; ?> 
   </ul> response <ul>  <?php foreach (apache_response_headers() as $k => $v) echo "<li> " . $k . " = " . $v ."</li>"; ?> 
  </ul> getallheaders <ul>  <?php foreach (getallheaders() as $k => $v) echo "<li> " . $k . " = " . $v ."</li>"; ?> 
   </ul>
 <h1>Source</h1>
<?php highlight_file('file2.php') ?>
 </body>
</html>