<?php
$arr=range(1,10);
shuffle($arr);
foreach($arr as $values)
{
   echo $values." ";
}
?>

<?php
$arr=array();
while(count($arr)<10)
{
    $arr[]=rand(1,10);
    $arr=array_unique($arr);
}
echo implode(" ",$arr);
?>

<?php
$arr=array();
$count1=0;
$count = 0;
$return = array();
while ($count < 10) 
 {
   $return[] = mt_rand(1, 10);
   $return = array_flip(array_flip($return));
   $count = count($return);
  }
foreach($return as $value)
 {
    echo $value." ";
 }
echo "<br/>";
$arr=array_values($return);// 获得数组的值 
foreach($arr as $key)
echo $key."  ";

?>