如何使用preg_replace替换:
Some text is [[1]] and some is [[2]] bla bla...
进入这个:
Some text is 1.____________ and some is 2.____________ bla bla...
我有一个正则表达式,它可以为我找到正确的匹配项,但我不知道如何在结果中添加替换数字?
preg_replace('('['['d']'])', '_______', $subject);
这让我得到了这样的结果:
Some text is ____________ and some is ____________ bla bla...
您需要使用一个捕获组和对它的引用:
preg_replace('~'['[('d)']']~', '$1._______', $subject);