What are the common challenges faced when trying to log in to a website using PHP scripts and form data?

One common challenge faced when trying to log in to a website using PHP scripts and form data is validating the user input and securely storing passwords. To solve this, you can use PHP's password hashing functions to securely store passwords and compare them during login. 

// Validate user input and securely store passwords
$username = $_POST['username'];
$password = $_POST['password'];

// Hash the password before storing it in the database
$hashed_password = password_hash($password, PASSWORD_DEFAULT);

// Verify the hashed password during login
if(password_verify($password, $hashed_password)) {
    // Password is correct, proceed with login
} else {
    // Password is incorrect, display error message
}

Keywords

Authentication PHP scripts Form data Session management Error handling

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