Are there best practices for handling password validation and authentication in PHP scripts to ensure security?

To ensure security when handling password validation and authentication in PHP scripts, it is recommended to hash passwords using a secure algorithm like bcrypt, salt the passwords before hashing, and use prepared statements to prevent SQL injection attacks. Additionally, implementing password policies such as requiring a minimum length and complexity can further enhance security. 

// Hashing and salting password before storing in the database
$password = $_POST['password'];
$salt = 'random_salt_here';
$hashed_password = password_hash($password . $salt, PASSWORD_BCRYPT);

// Verifying hashed password during authentication
$entered_password = $_POST['password'];
$stored_password = 'hashed_password_retrieved_from_database';
if (password_verify($entered_password . $salt, $stored_password)) {
    // Password is correct
} else {
    // Password is incorrect
}

Keywords

password validation authentication security PHP scripts error types

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