What are the potential pitfalls of not properly handling empty values in PHP code?

Not properly handling empty values in PHP code can lead to unexpected behavior, errors, or vulnerabilities in your application. It is important to check for empty values and handle them appropriately to ensure the reliability and security of your code. This can be done by using functions like `empty()` or `isset()` to validate input data before processing it. 

// Example code snippet to handle empty values in PHP
$input = $_POST['input'] ?? ''; // Using the null coalescing operator to provide a default empty value
if (!empty($input)) {
    // Process the input data
    echo "Input received: " . $input;
} else {
    echo "Input is empty";
}

Keywords

empty values PHP code error handling data validation null values

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