What are the implications of using user-inputted passwords in PHP scripts for both registration and login processes?

Using user-inputted passwords in PHP scripts for registration and login processes can pose security risks if not handled properly. It is crucial to hash passwords before storing them in the database to protect user data in case of a breach. Additionally, using prepared statements to prevent SQL injection attacks is essential to ensure the security of the application. 

// Registration process
$password = $_POST['password'];
$hashed_password = password_hash($password, PASSWORD_DEFAULT);
// Store $hashed_password in the database

// Login process
$username = $_POST['username'];
$password = $_POST['password'];

// Retrieve hashed password from the database based on the username
// Verify the password using password_verify function
if (password_verify($password, $hashed_password)) {
    // Password is correct, proceed with login
} else {
    // Password is incorrect
}

Keywords

security password hashing SQL injection validation authentication

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