PHP 產生指定長度的亂數字串,數字
function randomStr($length) {
$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
$result = '';
for ($i = 0; $i < $length; $i++) {
$result .= $chars[ mt_rand(0, strlen($chars) - 1) ];
}
return $result;
}
function randomNum($length) {
$result = '';
for ($i = 0; $i < $length; $i++) {
$result .= mt_rand(0, 9);
}
return $result;
}
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