Need help with php regex?

Question

PHP

Task:
Select lines where between the opening <h1> and the opening <p> there is no closing /h1, divide the entire line into groups (for subsequent replacement).

// Нужно
<h1> Наши <b>основные</b> тезисы <p>

// Не нужно
<h1> Наши <b>основные</b> </h1>тезисы <p>

I tried but I can’t figure out regexr.com/3c4ar actually I need a range but inside of which not individual characters / h1 are excluded, namely their sequence / h1

Answer 1

It is not necessary to parse html with regulars, and everything will be much easier. There are SimpleXML and other DOM APIs.