PHP 生成重复固定随机数邀请码
PHP About 1,177 words代码
function get_random($len = 3) {
//range 是将10到99列成一个数组
$numbers = range(10, 99);
//shuffle 将数组顺序随即打乱
shuffle($numbers);
//取值起始位置随机
$start = mt_rand(1, 10);
//取从指定定位置开始的若干数
$result = array_slice($numbers, $start, $len);
$random = "";
for ($i = 0; $i < $len; $i++) {
$random = $random . $result[$i];
}
return $random;
}
const AAA = 'abcdefghjkmnpqrstuvwxyzABCDEFGHJKMNPQRSTUVWXYZ23456789';
function get_random3($len = 3) {
//range 是将10到99列成一个数组
$numbers = ['a','b','c','d','e','f','g','h','j','k','m','n','p','q','r','s','t','u','v','w','x','y','z','A','B','C','D','E','F','G','H','J','K','M','N','P','Q','R','S','T','U','V','W','X','Y','Z','2','3','4','5','6','7','8', '9'];
//shuffle 将数组顺序随即打乱
shuffle($numbers);
//取值起始位置随机
$start = mt_rand(1, 10);
//取从指定定位置开始的若干数
$result = array_slice($numbers, $start, $len);
$random = "";
for ($i = 0; $i < $len; $i++) {
$random = $random . $result[$i];
}
return $random;
}
//随机数
function get_random2($length = 4) {
$min = pow(10, ($length - 1));
$max = pow(10, $length) - 1;
return mt_rand($min, $max);
}
Views: 3,271 · Posted: 2019-04-08
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