PHP手机获取6为不重复验证码

                //存数字数组                $code = array();		 		 while(count($code) < 6){			 //产生随机数1-9			 $code[] = rand(1,9);                         //去除数组中的重复元素                         $code = array_unique($code);		 }		 echo "
";		 print_r($code);