What are the best practices for naming variables in PHP to avoid confusion and improve code readability, especially in the context of database connections and form submissions?

When naming variables in PHP, it is important to use descriptive names that clearly convey the purpose of the variable. This is especially crucial when working with database connections and form submissions to avoid confusion and improve code readability. For database connections, consider using names like $dbConnection or $pdo for clarity. When dealing with form submissions, use names that reflect the data being submitted, such as $username or $email. 

// Example of naming variables for database connection
$dbConnection = new PDO($dsn, $username, $password);

// Example of naming variables for form submissions
$username = $_POST['username'];
$email = $_POST['email'];

Keywords

naming conventions variable naming database connections form submissions code readability

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