What are common pitfalls when trying to store HTML elements in an array in PHP?

One common pitfall when trying to store HTML elements in an array in PHP is that the array may not preserve the structure of the elements properly, resulting in unexpected behavior when trying to output or manipulate them later. To solve this issue, you can use the DOMDocument class in PHP to parse the HTML elements and store them in an array while preserving their structure.

// Create a new DOMDocument instance
$dom = new DOMDocument();

// Load the HTML content into the DOMDocument
$dom->loadHTML($html);

// Get all the HTML elements as an array
$elements = [];
foreach ($dom->getElementsByTagName('*') as $element) {
    $elements[] = $dom->saveHTML($element);
}

// Output the stored HTML elements
foreach ($elements as $element) {
    echo $element;
}