How can Type-Hinting be utilized to improve error handling in PHP functions?

Type-Hinting can be utilized to improve error handling in PHP functions by specifying the type of parameter expected by the function. This helps prevent unexpected data types from being passed into the function, reducing the chances of errors or bugs related to incorrect data types. 

function calculateSum(int $num1, int $num2): int {
    return $num1 + $num2;
}

// Example usage
$result = calculateSum(5, '10'); // This will result in a TypeError

Keywords

Type-Hinting error handling PHP functions data validation exception handling

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