如何在php中将两个以上的标签转换为双色<br/> <br/>

Question

Do not convert

<br/>
<br/><br/>

Convert, if there are more than two newline tag

<br/><br/><br/>

into

<br/><br/>

How to add my condition to this?

preg_replace("/(<br\s*\/?>\s*)+/", "<br/><br/>", $input);

Answer 1

(<br[ ]*\/?>){2,}

Simply use this.And replace it by <br/><br/>.