Is it recommended to use iframes instead of framesets in PHP to avoid display bugs in Mozilla Firefox?

Using iframes instead of framesets in PHP is recommended to avoid display bugs in Mozilla Firefox. Framesets are an older HTML feature that is not fully supported by modern browsers like Firefox, leading to potential display issues. By using iframes, you can create separate sections of a webpage that are more compatible with modern browsers and less likely to cause display problems.

<!DOCTYPE html>
<html>
<head>
    <title>Using iframes in PHP</title>
</head>
<body>
    <iframe src="section1.php" width="50%" height="300px"></iframe>
    <iframe src="section2.php" width="50%" height="300px"></iframe>
</body>
</html>