Parsing Repeating Tags Using Regular Expressions in PHP

Suppose we have not one tag, but several. For example, several paragraphs:

<p>
	text1
</p>
<p>
	text2
</p>
<p class="block">
	text3
</p>

Let's write code that will get an array of texts of all paragraphs:

<?php
	preg_match_all('#<p[^>]*>(.+?)</p>#su', $str, $matches, PREG_PATTERN_ORDER);
?>

Let's check that we found the texts of our paragraphs:

<?php
	var_dump($matches[1]); // ['text1', 'text2', 'text3']
?>

Get an array of contents of all h2:

<h2>111</h2>
<p>
	---
</p>

<h2>222</h2>
<p>
	---
</p>

<h2 class="last">333</h2>
<p>
	---
</p>