How can developers ensure that their PHP functions provide accurate feedback to users?

Developers can ensure that their PHP functions provide accurate feedback to users by implementing proper error handling and validation checks within the functions. This includes checking input parameters, handling exceptions, and returning informative error messages when necessary. 

function divide($numerator, $denominator) {
    if ($denominator == 0) {
        throw new Exception("Division by zero is not allowed.");
    }

    return $numerator / $denominator;
}

try {
    echo divide(10, 0);
} catch (Exception $e) {
    echo "Error: " . $e->getMessage();
}

Keywords

error handling exception handling debugging unit testing assert statements

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