What are common pitfalls when integrating PHP code into HTML environments, particularly in frames?

Common pitfalls when integrating PHP code into HTML environments, particularly in frames, include not properly escaping PHP code within HTML tags, leading to syntax errors or unexpected outputs. To avoid this, it is important to use PHP opening and closing tags correctly within the HTML code. 

<!-- Incorrect way of embedding PHP code within HTML -->
<iframe>
    <?php echo "Hello, World!"; ?>
</iframe>

<!-- Correct way of embedding PHP code within HTML -->
<iframe>
    <?php echo "Hello, World!"; ?>
</iframe>

Keywords

PHP HTML integration frames errors

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