What are some best practices for maintaining code readability in PHP when incorporating HTML elements?

When incorporating HTML elements in PHP code, it's important to maintain code readability for easier debugging and maintenance. One best practice is to separate PHP logic from HTML presentation by using PHP opening and closing tags within the HTML code. Additionally, indenting and properly formatting the code can make it more readable.

<?php
// PHP logic
$variable = "Hello World";

// HTML presentation
?>
<!DOCTYPE html>
<html>
<head>
    <title>PHP HTML Example</title>
</head>
<body>
    <h1><?php echo $variable; ?></h1>
</body>
</html>