PHP: nl2br???

function br2nl($text)
{
 $text=str_replace('
', "\n", $text);
 $text=str_replace('
', "\n", $text);
 return $text;
}


function execute_php_content($message, $do=1)
{
 if ($do!=1)
 {
  return $message;
 }


 $matchCount = preg_match_all('#\<\?php(.*?)\?\>#si', $message, $matches);


 for ($i = 0; $i < $matchCount; $i++)
 {
  $currMatchTextBefore = preg_quote($matches[1][$i]);


  ob_start();
   eval($matches[1][$i]);
  $currMatchTextAfter = ob_get_clean();


  $message = preg_replace('#\<\?php'.$currMatchTextBefore.'\?\>#si', $currMatchTextAfter, $message);
 }
 return $message;
}


$file_content=execute_php_content(br2nl(file_get_contents('deien_datei.xyz')), 1);


echo $file_content; unset($file_content);