What are some common security considerations when implementing user authentication in PHP?

Issue: One common security consideration when implementing user authentication in PHP is to avoid storing passwords in plain text. Instead, passwords should be securely hashed before being stored in the database. This helps protect user passwords in case of a data breach. Code snippet: 

// Hashing the password before storing it in the database
$password = $_POST['password'];
$hashed_password = password_hash($password, PASSWORD_DEFAULT);

// Storing the hashed password in the database
$query = "INSERT INTO users (username, password) VALUES ('$username', '$hashed_password')";

Keywords

SQL injection password hashing CSRF protection session management secure communication.

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