PHP笔记-双色球例子

程序运行截图如下：

源码如下：

<title>双色球</title>
 
<?php
 
    $red_num = range(1, 33);
    $keys = array_rand($red_num, 6);
    shuffle($keys);
    foreach ($keys as $v){
 
        $red[] = $red_num[$v] < 10 ? ('0' . $red_num[$v]) : $red_num[$v];
    }
 
    $blue_num = rand(1, 16);
    $blue = $blue_num < 10 ? ('0' . $blue_num) : $blue_num;
    foreach ($red as $v){
 
        echo '<font color = "red">' . $v . '</font> ';
    }
 
    echo '<font color = "blue">' . $blue . '</font>';
 
?>