php获取随机数组列表的方法

function create_random_ids( $min,$max,$limited )
{
    $_base_ids = range($min,$max);
    $_temp_key = array_rand ($_base_ids,min(count($_base_ids),$limited+10));
    //拼接
    $ids = array();
    for ($x=0; $x < count($_temp_key); $x++) {
        $ids[] = $_base_ids[$_temp_key[$x]];
    }
    return $ids;
}

<?php
$a = array(0,1,2,3,4,5,6,7,8);
echo "$a原来的顺序为<hr/>";
foreach($a as $v)
 echo $v."t";
shuffle($a);
echo "<br/>$a被打乱后的顺序为<hr/>";
foreach($a as $v)
 echo $v."t";
?>