How can the issue of failed authentication be resolved in the PHP script?

Issue: Failed authentication in a PHP script can be resolved by ensuring that the user input matches the expected credentials stored in a database or configuration file. This can be achieved by comparing the input username and password with the stored values using PHP's password_verify() function for securely hashed passwords. 

// Assuming $username and $password are the user input values
// Retrieve the hashed password from the database based on the input username
$stored_password = "hashed_password_from_database";

// Verify if the input password matches the stored hashed password
if (password_verify($password, $stored_password)) {
    // Authentication successful
    echo "Authentication successful";
} else {
    // Authentication failed
    echo "Authentication failed";
}

Keywords

authentication PHP script error handling password hashing session management

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