#    cat.php
<?php
 
$req = $_GET["req"];  // reuested URL
$uri = $_GET["uri"];  // base URL of web
$path= $_GET["path"];  // base physical path of files
 
echo "<pre>";
$fullpath = $path . "/" . $req;
if (is_file($fullpath) ) {
 $file = fopen($fullpath, "r");
 if (!$file){
  echo "Error opening the file";
 }
 while (!feof($file)) {
  $zeile = fgets ($file);
  echo htmlentities($zeile, ENT_QUOTES);
 }
 fclose($file);
 exit;
}
else {
 echo $path . "/" . $req . " is not a valid file<p>";
}
echo "</pre>";
?>