What are some potential challenges when parsing strings with nested HTML tags in PHP?

When parsing strings with nested HTML tags in PHP, one potential challenge is maintaining the correct nesting structure of the tags. This can be particularly tricky when dealing with multiple levels of nested tags. One way to solve this is by using a DOM parser like PHP's DOMDocument class, which can handle the parsing and manipulation of HTML strings with nested tags more effectively. 

$html = '<div><p>Hello <strong>world</strong></p></div>';

$dom = new DOMDocument();
$dom->loadHTML($html);

// Get the inner HTML of the <div> tag
$divContent = $dom->getElementsByTagName('div')->item(0)->nodeValue;

echo $divContent;

Keywords

PHP string parsing nested HTML tags DOMDocument regex

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