What common pitfalls do PHP beginners often encounter when working with variables in PHP scripts?

One common pitfall for PHP beginners is not properly initializing variables before using them, which can lead to errors or unexpected behavior in the script. To solve this issue, always declare and initialize variables before using them in your PHP code. 

// Incorrect way - variable not initialized
$name = "John";
echo "Hello, " . $name; // Error: Undefined variable $name

// Correct way - initialize variable before using it
$name = "John";
echo "Hello, " . $name; // Output: Hello, John

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