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What are the potential pitfalls when trying to store additional values in an array while looping through database results in PHP?

When trying to store additional values in an array while looping through database results in PHP, a common pitfall is accidentally overwriting the array key with each iteration of the loop. To solve this issue, you can use a unique key for each value you want to store in the array, such as the database row ID.

php 
// Initialize an empty array to store additional values
$additionalValues = [];

// Loop through database results
while ($row = $result->fetch_assoc()) {
    // Store additional value with a unique key (e.g., database row ID)
    $additionalValues[$row['id']] = $row['additional_value'];
}

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