PHP Decode

<? // all rights reserved ?> 
<? // www.p-hoster.com ?> 
<?php $ { 
    "GLOBALS" 
} 
["xexuvqp"] = "web_host"; 
$ { 
    "GLOBALS" 
} 
["wlfvvgxhtm"] = "web_host"; 
$ { 
    $ { 
        "GLOBALS" 
    } 
    ["wlfvvgxhtm"] 
} 
["site"] = getenv("HTTP_HOST"); 
$nziimblf = "web_host"; 
$crlooti = "web_host"; 
$ { 
    "GLOBALS" 
} 
["cplanrsd"] = "mainurl"; 
$gfmnsayqtgm = "phosterlicence"; 
$ { 
    "GLOBALS" 
} 
["fyzjswcgv"] = "web_host"; 
$rpqrwpohyc = "web_host"; 
if (substr($ { 
    $rpqrwpohyc 
} 
["site"], 0, 4) == "www.") $ { 
    $crlooti 
} 
["site"] = substr($ { 
    $ { 
        "GLOBALS" 
    } 
    ["xexuvqp"] 
} 
["site"], 4); 
$ { 
    $nziimblf 
} 
["hash"] = wordwrap(strtoupper(md5(sha1(($ { 
    $ { 
        "GLOBALS" 
    } 
    ["fyzjswcgv"] 
} 
["site"])))), 4, "-", true); 
$ { 
    $gfmnsayqtgm 
} = $ { 
    $ { 
        "GLOBALS" 
    } 
    ["wlfvvgxhtm"] 
} 
["site"]; 
$ { 
    $ { 
        "GLOBALS" 
    } 
    ["cplanrsd"] 
} = file_get_contents("http://mt3espier.com/SAW/WAS.txt"); 
?>