What are the potential pitfalls of using htmlentities in PHP when dealing with text copied from Word?

When dealing with text copied from Word, using htmlentities in PHP may not fully sanitize the text, as Word can introduce special characters or formatting that htmlentities may not handle properly. To properly sanitize text copied from Word, it is recommended to use a more robust library or function specifically designed for cleaning Word documents, such as the PHPWord library or the strip_tags function with additional filtering. 

// Example using strip_tags with additional filtering to sanitize text copied from Word
$wordText = "<p>This is text copied from Word with <strong>formatting</strong> and special characters.</p>";
$cleanText = strip_tags($wordText, '<p><strong>'); // Only allow <p> and <strong> tags
echo $cleanText;

Keywords

htmlentities PHP text Word encoding

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