PHP中，把$_SERVER['QUERY_STRING']转换为$_GET数组

a=1&b=2&c=3&vardate=2012-11-12

$_GET['a']=1;
$_GET['b']=2；
$_GET['c']=3;
$_GET['vardate']='2012-11-12';

list(,$tmp) = explode("?", $_SERVER['QUERY_STRING']);
$a = explode("&",$tmp);
foreach($a as $v) {
    $b = explode("=", $v);
	$_GET[$b[0]] = $b[1];			
}
var_dump($_GET);

a=1&b=2&c=3&vardate=2012-11-12

$_GET['a']=1;
$_GET['b']=2；
$_GET['c']=3;
$_GET['vardate']='2012-11-12';

list(,$tmp) = explode("?", $_SERVER['QUERY_STRING']);
$a = explode("&",$tmp);
foreach($a as $v) {
    $b = explode("=", $v);
	$_GET[$b[0]] = $b[1];			
}
var_dump($_GET);