Implement a simple random lottery applet based on PHP

A small lottery program, the overview is controllable, and a certain prize can be displayed on the front end, but it is impossible to get it in the program! 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 it immediately generates a number between 0 and the maximum number, checks which interval it belongs to through a loop, and returns 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.

The above introduces the implementation of a simple random lottery applet based on PHP, including various aspects. I hope it will be helpful to friends who are interested in PHP tutorials.