What are some best practices for returning data from a function in PHP?

When returning data from a function in PHP, it is best practice to use the return statement to explicitly specify what value should be returned. This helps improve code readability and maintainability. Additionally, it is recommended to return only one type of data from a function to avoid confusion. 

// Example of returning data from a function in PHP
function getUserData($userId) {
    // Fetch user data from database
    $userData = // Fetch user data here
    
    return $userData;
}

// Call the function and store the returned data in a variable
$userData = getUserData($userId);

// Use the returned data as needed
echo $userData['username'];

Keywords

return data function PHP error

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