What are some tips for troubleshooting issues with arrays and functions in PHP?

Issue: When passing an array to a function in PHP, ensure that the array is properly formatted and that the function is correctly handling the array data. Example Fix: 

// Issue: Passing an incorrectly formatted array to a function
function calculateSum($numbers) {
    $sum = array_sum($numbers);
    return $sum;
}

// Corrected code: Ensure the array is correctly formatted before passing it to the function
$numbers = [1, 2, 3, 4, 5];
$sum = calculateSum($numbers);
echo $sum;

Keywords

arrays functions troubleshooting PHP errors

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