日期:2014-05-17 浏览次数:20516 次
$strMaxcardid = 699; //上一个号码 while(preg_match('/(4|7)+/', ++$strMaxcardid)) $strMaxcardid ++; echo $strMaxcardid; //800
------解决方案--------------------
//这样应该比较高效了,不需要用正则 $strMaxcardid = 699; $ar = str_split(++$strMaxcardid); foreach($ar as $k => $v) { if ($v == 4 || $v == 7) { $ar[$k] ++; break; } } $strMaxcardid = join('', $ar); echo $strMaxcardid; //800