用php随机生成福彩双色球号码的二种方法

<?php
/*
随机生成福彩双色球号码
*/
$red = array(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33);
$blue = array(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16);
for ($i=0;$i<6;$i++){
$index = rand(0,32-$i);
$redBall[]= $red[$index];
unset($red[$index]);
for($k=$index;$k<count($red)-1;$k++){
   $red[$k]=$red[$k+1];
}
}
asort($redBall);
?>
<div style="background-color:red;color:white;width:160px;float:left;text-align:center;">
<?php
foreach($redBall as $v){
echo $v."&nbsp";
}
?>
</div>
<div style="background-color:blue;color:white;width:40px;float:left;text-align:center">
<?php
echo $blue[rand(0,15)];
?>
</div>

<?php
/*
随机生成福彩双色球号码
*/
echo "<br>";
echo "<p>";
$red1=range(1,33);
$blue1=mt_rand(1,6);
$sc1=array_rand($red1,6);
?>
<div style="background-color:red;color:white;width:160px;float:left;text-align:center;">
<?php
foreach($sc1 as $v){
echo "$v&nbsp;";
}
?>
</div>
<div style="background-color:blue;color:white;width:40px;float:left;text-align:center">
<?php
echo "$blue1";
?>
</div>