快速排序:PHP 快速排序

//Quick Sort 
function quickSort(array $array){ 
static $run = 0; 
$len = count($array); 
if($len return $array; 
$arrleft=array(); 
$arrright=array(); 
$flag = $array[0]; 
for($i=1;$i$len;$i++){ 
if($array[$i]$flag){ 
$arrleft[]=$array[$i]; 
}else{ 
$arrright[] = $array[$i]; 
} 
} 
$arrleft = quickSort($arrleft); 
$arrright = quickSort($arrright); 
$run++; 
return array_merge($arrleft,array($flag),$arrright); 
} 
$data= array(10,12,43,32,123,12); 
$newarr = quickSort($data); 
print_r($newarr); 
?>