PHP: Confirm Password

To stop our webpage from having thousands of accounts that are not being used because people entered their passwords wrong and then had to sign up again, we chose to set up a confirm password field. Because I was not sure how to do it, I had to do some research. I found a YouTube tutorial that explained the whole thing very well. You can see it below:

To make sure I had the knowledge to set it up, I then read some threads on where people tried to do similar things. I will cite them in my references. Then, I moved to our code. The very first thing I needed was the field. So, I added that to the form we already had in the index.php file:

<input type="password" name="confirm_password" value="" placeholder="Confirm Password"/>

The rest that was needed was to compare the two entered passwords and send out an alert message in case they would not match. You can see the code I used for that in the following:


    if(isset($_POST[&amp;quot;signup&amp;quot;])) {


        $password = $_POST['password'];

        $confirm_password = $_POST['confirm_password'];


        if ($password != $confirm_password) {

            $if ($password != $confirm_password) {
             $message = "Passwords do not match. ";
             echo '<div class="message">'.$message.'</div>';


        } else {

            $query = "INSERT INTO users (name, password, student_id, gender) VALUES ('{$name}', '{$password}', '{$student_id}','{$gender}')";

            $result = mysqli_query($connect, $query); 

            $message = "Your account has been registered!";

            echo $message; 

                if($result) {

                        $message = "Success, your account was added!";   

                    } else {

                        $message = "Sorry, something went wrong!"; 



        $password = ""; 

        $confirm_password = "";



In the end, I tested it. To show that better, I temporarily changed my input type to “text” :

 <input type="text" name="password" value="" placeholder="Password"/>
 <input type="text" name="confirm_password" value="" placeholder="Confirm Password"/>

In the picture, you can see me entering two different passwords and then the alert message at the top of the page:

 Screenshot (264) Screenshot (265)


Learn More, 2013. PHP & MySQL Confirm Password. Available from: [Accessed: 13th March 2015]

User3665022, 2014. Stack Overflow. PHP confirm password and check if user already exists in mySQL [closed]. Available from: [Accessed: 13th March 2015]

Vijaykarthik, 2014. Stack Overflow. How to validate email id and password & confirm password in php. Available from [Accessed: 13th March 2015]


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