In the given PHP code, why is there a loop to fetch user data when only one user is expected to be retrieved?

The loop to fetch user data is unnecessary when only one user is expected to be retrieved because it adds unnecessary complexity to the code and can potentially cause performance issues. To solve this issue, you can remove the loop and directly fetch the user data without iterating over a result set. 

// Unnecessary loop to fetch user data
while ($row = $stmt->fetch()) {
    // Process user data
}

// Fetch user data without a loop
$userData = $stmt->fetch();

// Process user data
// Example: $username = $userData['username'];

Keywords

PHP loop user data retrieval single user

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