How can PHP be used to ensure that HTML code is properly interpreted when retrieved from a database?

When HTML code is stored in a database, it needs to be properly escaped to prevent any potential security vulnerabilities like cross-site scripting attacks. PHP provides functions like htmlspecialchars() that can be used to encode HTML entities before displaying the content on a webpage. By using htmlspecialchars() on the retrieved HTML content from the database, you can ensure that it is properly interpreted by the browser without any risk of executing malicious scripts. 

// Retrieve HTML content from the database
$htmlContent = "<p>This is some <strong>HTML</strong> content.</p>";

// Encode HTML entities before displaying
echo htmlspecialchars($htmlContent);

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