What are the potential pitfalls of relying solely on online tutorials for learning PHP?

Potential pitfalls of relying solely on online tutorials for learning PHP include outdated or inaccurate information, lack of personalized feedback or guidance, and limited depth of understanding. To mitigate these risks, it is important to supplement online tutorials with official documentation, practice coding on your own projects, and seek help from experienced developers or mentors.

// Example code snippet to demonstrate the importance of consulting official documentation
// Instead of relying solely on online tutorials

// Incorrect way to check if a variable is empty
$var = "";
if ($var == "") {
    echo "Variable is empty";
}

// Correct way to check if a variable is empty using official PHP documentation
$var = "";
if (empty($var)) {
    echo "Variable is empty";
}