我正在尝试在PHP中创建一个随机字符串,但是使用以下代码没有任何输出:
<?php
function RandomString()
{
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$randstring = '';
for ($i = 0; $i < 10; $i++) {
$randstring = $characters[rand(0, strlen($characters))];
}
return $randstring;
}
RandomString();
echo $randstring;
我做错了什么?
strlen($characters)
=>strlen($characters) - 1
- 字符串长度从1开始 - Zippp