How can PHP developers ensure that the user's old password is verified before allowing a password change?

To ensure that the user's old password is verified before allowing a password change, PHP developers can prompt the user to input their current password and then compare it with the password stored in the database. If the passwords match, the user can proceed with changing their password. This verification step adds an extra layer of security to prevent unauthorized password changes. 

// Assuming $currentPassword contains the user's input for their current password
// Assuming $storedPassword contains the hashed password stored in the database

if (password_verify($currentPassword, $storedPassword)) {
    // Proceed with allowing the user to change their password
    // Code to update the password in the database can be added here
} else {
    // Display an error message indicating that the current password is incorrect
}

Keywords

PHP password verification password change user authentication security

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