How can rawurldecode() be effectively used to convert HTML code into a format suitable for file manipulation in PHP?

When dealing with HTML code in PHP, it is important to ensure that special characters are properly encoded or decoded to prevent any issues during file manipulation. To convert HTML code into a format suitable for file manipulation, you can use the rawurldecode() function in PHP to decode any URL-encoded characters back to their original form.

// Example HTML code
$htmlCode = "%3Chtml%3E%3Cbody%3EHello%20World%3C/body%3E%3C/html%3E";

// Decode the HTML code using rawurldecode()
$decodedHtml = rawurldecode($htmlCode);

// Now $decodedHtml contains the HTML code in a format suitable for file manipulation
echo $decodedHtml;