Are there any advantages or disadvantages to using PDF files for learning PHP compared to physical books?

When learning PHP, using PDF files can offer advantages such as easy access, portability, and searchability. However, some disadvantages include potential eye strain from prolonged screen time and the inability to easily annotate or highlight important information. Physical books, on the other hand, may provide a more tactile and immersive learning experience, but they can be less convenient to carry around and may lack the searchability of digital files. 

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// Code snippet implementing the fix goes here
// This is just a placeholder
echo "Fix implemented!";
?>

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PDF files learning PHP advantages disadvantages physical books

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