Home Backend Development PHP Tutorial php生成会员卡做跳4,7的操作,该怎么解决

php生成会员卡做跳4,7的操作,该怎么解决

Jun 13, 2016 am 10:23 AM
ar code match php

php生成会员卡做跳4,7的操作
if(preg_match( "/4/", $strMaxcardid+$i)){ $cardCount ++ ; continue; } 想问一下,我想同时跳4,7该怎么写呢

------解决方案--------------------

PHP code
$strMaxcardid = 699; //上一个号码while(preg_match('/(4|7)+/', ++$strMaxcardid)) $strMaxcardid ++;echo $strMaxcardid; //800<br><font color="#e78608">------解决方案--------------------</font><br>
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PHP code
//这样应该比较高效了,不需要用正则$strMaxcardid = 699;$ar = str_split(++$strMaxcardid);foreach($ar as $k =&gt; $v) {    if ($v == 4 || $v == 7) {        $ar[$k] ++;        break;    }}$strMaxcardid = join('', $ar);echo $strMaxcardid; //800<div class="clear">
                 
              
              
        
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