What are some common pitfalls when using variables in PHP, as seen in the code snippet provided?

One common pitfall when using variables in PHP is not properly initializing them before using them. This can lead to undefined variable errors or unexpected behavior in your code. To solve this issue, always make sure to initialize your variables before using them to avoid any errors.

// Incorrect code
echo $name; // This will result in an undefined variable error

// Corrected code
$name = "John Doe";
echo $name; // Output: John Doe