What are the potential pitfalls of not initializing variables properly in PHP code?

If variables are not initialized properly in PHP code, they may contain unexpected values or be undefined, leading to errors or unexpected behavior in the program. To avoid this issue, it is important to always initialize variables before using them in your code. 

// Incorrect way of not initializing variables properly
$number;
echo $number; // This will result in a notice: "Undefined variable: number"

// Correct way of initializing variables properly
$number = 10;
echo $number; // Output: 10

Keywords

variable initialization PHP code error handling undefined variables debugging

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