//随机生成n位字符串 function rand_str($num){ $str = "qwertyuioplkjhgfdsazxcvbnmQAZWSXEDCRFVTGBYHNUJMIKOLP1234567890"; $str_len = strlen($str)-1; //echo $str_len; $s=''; for ($i = 0; $i $s.=$str[rand(0, $str_len)]; } echo $s; } rand_str(32); ?> |
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