php 生成一段随机的 字符串 可以设置数字字符
<?php
function generateRandomString($length = 10) {
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$randomString = '';
// 生成随机字符串
for ($i = 0; $i < $length; $i++) {
$randomString .= $characters[rand(0, strlen($characters) - 1)];
}
return $randomString;
}
// 生成长度为 10 的随机字符串
$randomString = generateRandomString();
echo $randomString;
?>
$randomString 则是随机生成的字符串