What potential issues could arise from overwriting the $result variable within a while loop in PHP?

Overwriting the $result variable within a while loop in PHP can lead to unexpected behavior and data loss, as the variable is constantly being reassigned. To solve this issue, you can create a new variable within the loop to store the result of each iteration, or use an array to store multiple results.

$results = array(); // Initialize an array to store results

while ($row = $stmt->fetch()) {
    $result = $row['column']; // Store the current result in a temporary variable
    $results[] = $result; // Add the result to the array
}

// Now $results array contains all the results from the loop