What are the advantages and disadvantages of using iframes versus DOM manipulation in PHP when displaying external website content?

When displaying external website content in PHP, using iframes can be a quick and easy solution. However, iframes have limitations such as potential security risks and difficulty in styling and interacting with the content. On the other hand, DOM manipulation allows for more control over the external content but requires more coding effort.

// Using iframes to display external website content
<iframe src="https://www.externalwebsite.com"></iframe>