How can PHP developers ensure the security of user logins in their applications?

To ensure the security of user logins in PHP applications, developers should use secure hashing algorithms like bcrypt to store passwords in a hashed format. Additionally, they should implement measures such as salting the passwords and using prepared statements to prevent SQL injection attacks.

// Hashing the password using bcrypt
$hashed_password = password_hash($password, PASSWORD_BCRYPT);

// Verifying the password
if (password_verify($input_password, $hashed_password)) {
    // Password is correct
} else {
    // Password is incorrect
}