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正则表达式匹配,并替换部分字符,该如何解决

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Release: 2016-06-13 13:40:50
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正则表达式匹配,并替换部分字符
$aaa = "aaa;bbb;ccc;ddd;eee;fff;"

替换成:"aaa*bbb;ccc*ddd;eee*fff;"

不要用php的方法!

我只想用正则替换不知哪位同学能帮忙解决下,实在想不出来!
目的就是把奇数位的;替换成* 偶数位的;不变!

先谢谢了~

------解决方案--------------------
echo preg_replace('/(\w+);(\w+)/','$1*$2',$aaa);
------解决方案--------------------
隔一次替换一次是吧?

PHP code
$aaa = "aaa;bbb;ccc;ddd;eee;fff;";
echo preg_replace('#\G[^;]+\K;([^;]+;?)#','*\1',$aaa); <div class="clear">
                 
              
              
        
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