//php生成新密码函数 function genPassword($min = 5, $max = 8) { $validchars="abcdefghijklmnopqrstuvwxyz123456789"; $max_char=strlen($validchars)-1; $length=mt_rand($min,$max); $password = ""; for($i=0;$i { $password.=$validchars[mt_rand(0,$max_char)]; } return $password; } echo "新密码:".genPassword().""; echo "新密码:".genPassword(5,10).""; ?>