题目： PHP 实现简单的快速排序

描述：

function simpleQuickSort(array $list)
{$length = count($list);if( $length <= 1){return $list;}else{$pivot = $list[0];$left_list = array();$right_list = array();for($i = 1; $i < $length; $i++){if($list[$i] < $pivot){$left_list[] = $list[$i];}else{$right_list[] = $list[$i];}}return array_merge(simpleQuickSort($left_list), array($pivot), simpleQuickSort($right_list));}
}
$list = array(3, 6, 2, 4, 10, 1 ,9, 8, 5, 7);
var_dump(simpleQuickSort($list));