Implement a simple random lottery applet based on PHP, php lottery applet_PHP tutorial

Implement a simple random lottery applet based on PHP, PHP lottery applet

A lottery applet with a controllable overview, and a certain prize can also be displayed on the front end, and in the program It’s simply impossible to get! After adding up all the probabilities x10, the value of each item in the new array is equal to the sum of its previous ones plus itself.

Then immediately generate a number between 0 and the maximum number, check which interval it belongs to through a loop, and return the key of that interval.

The code is as follows

$prize = array(
1 => 3.5, //3.5%机率
2 => 2.5, 
3 => 6, 
4 => 2, 
5 => 42, //42%机率
6 => 36, 
7 => 2, 
8 => 4, 
9 => 2
);
//最后确认相加等于100
$prizeList = array(
1 => array('小仙子'), 
2 => array('5Q币'), 
3 => array('38888游戏币'), 
4 => array('88888游戏币'), 
5 => array('谢谢参与!'), 
6 => array('欢迎下次再来！'), 
7 => array('10Q币'), 
8 => array('888银元宝（绑定）'), 
9 => array('随机高级坐骑（绑定）')
);
//unset($prize[7]); 直接把10Q这个奖品去掉
$times = 10;
$max = 0;
foreach ($prize as $k => $v)
{
$max = $v * $times + $max;
$row['v'] = $max;
$row['k'] = $k;
$prizeZone[] = $row;
}
$max--; //临界值
$rand = mt_rand(0, $max);
$zone = 1;
foreach ($prizeZone as $k => $v)
{
if ($rand >= $v['v'])
{
if ($rand >= $prizeZone[$k + 1]['v'])
{
continue;
}
else
{
$zone = $prizeZone[$k + 1]['k'];
break;
}
}
$zone = $v['k'];
break;
}
print_r($prizeList[$zone][0]);

That’s all I have written for you to implement a simple lottery applet based on PHP, but they are all core codes. I hope it will be helpful to everyone’s study and work.

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