如何在不使用 rand() 函数的情况下获取固定长度的字符串?
我有这个,但我不想使用 rand() 函数
function generateRandomString($length =6) {
$characters = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
$charactersLength = strlen($characters);
$randomString = '';
for ($j = 0; $j < $length; $j++) {
$randomString .= $characters[mt_rand(0, $charactersLength - 1)];
}
return $randomString;
}
<?php
$start=0;$length=6;
$str='0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
$Val=substr(str_shuffle($str),$start,$length);
echo $Val;
?>
function mt_rand_str ($l, $c = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890') {
for ($s = '', $cl = strlen($c)-1, $i = 0; $i < $l; $s .= $c[mt_rand(0, $cl)], ++$i);
return $s;
}
在这里你可以调用这个函数的 8 个字符
mt_rand_str(8)
您可以使用以下代码获取固定长度的随机字符串
<?php
$str = 'abcdef';
$shuffled = str_shuffle($str);
// this will genrate randome string with fixed string lenght
echo $shuffled;
?>