php生成随机长度字符串
只要穿长度的参数就行了,具体代码如下:
public function getRandStr($len) //len字符串长度
{
$chars = array(
'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','0','1','2','3','4','5','6','7','8','9');//你想填写的随机数
$charsLen = count($chars) - 1;
shuffle($chars);
$output = '';
for ($i = 0; $i < $len; $i++) {
$output .= $chars[mt_rand(0, $charsLen)];
}
return $output;
}