An empty row getting inserted in database - php

Question

Hey I am trying to get this code running for the past few days now. I do not know what is the problem. Whenever I run the code I can see it running but an empty row gets inserted. Basically I ave tried to hard code the data and the data gets inserted. Here is the HTML form:
<form action="register.php" id="contactForm" type="post">
<div class="row">
<div class="form-group">
<div class="col-md-6">
<label>First name *</label>
<input type="text" class="form-control" name="fname" >
</div>
<div class="col-md-6">
<label>Last name *</label>
<input type="text" class="form-control" name="lname" >
</div>
</div>
</div>
<div class="row">
<div class="form-group">
<div class="col-md-6">
<label>Gender *</label><br>
<select name="gender">
<option> Male </option>
<option> Female </option>
</select>
</div>
<div class="col-md-6">
<label>Stream *</label><br>
<select name="stream">
<option> B-Tech </option>
<option> M-Tech </option>
</select>
</div>
</div>
</div>
<div class="row">
<div class="form-group">
<div class="col-md-6">
<label>Email *</label>
<input type="text" class="form-control" name="email" >
</div>
<div class="col-md-6">
<label>Mobile *</label>
<input type="text" class="form-control" name="mobile">
</div>
</div>
</div>
<div class="row">
<div class="form-group">
<div class="col-md-6">
<label>College *</label>
<input type="text" class="form-control" name="college" >
</div>
<div class="col-md-6">
<label>Job Kind *</label>
<input type="text" class="form-control" name="job" >
</div>
</div>
</div>
<div class="row">
<div class="col-md-12">
&nbsp&nbsp&nbsp&nbsp
<input type="submit" value="Register" class="btn btn-primary btn-lg"
data-loading-text="Loading..." name="submit">
</div>
</div>
</form>
Here is the registration.php
<?php
$connection = mysql_connect("EDITED by billy, was an I.P and port number", "user", "password"); // Establishing Connection with Server
$db = mysql_select_db("Registrations_connect", $connection); // Selecting Database from Server
$first_name = $_POST["fname"];
$last_name = $_POST["lname"];
$sex = $_POST["gender"];
$field = $_POST["stream"];
$contact = $_POST["mobile"];
$eaddress = $_POST["email"];
$institute = $_POST["college"];
$naukri = $_POST["job"];
$query = mysql_query("insert into students(fname, lname, gender, stream, mobile, email, college, job)
values ('$name', '$last_name', '$sex', '$field','$contact', '$eaddress', '$intitute', '$naukri')");
echo "<br/><br/><span>Data Inserted successfully...!!</span>";
mysql_close($connection); // Closing Connection with Server
?>
After running; In the inspect element I checked the response:- It shows Data Inserted successfully but actually an empty row is getting inserted. Basically what i think I am not able to correctly grab the data properly from form. Can somebody please check what is the problem. It will be a great help.

Answer 1

The attribute is method, not type. This typo is causing your form to process a GET rather than a POST. So all your variable assignments are wrong.
$first_name = $_POST["fname"];
would be
$first_name = $_GET["fname"];
or you could use the $_REQUEST; or you can just correct the attribute,
<form action="register.php" id="contactForm" method="post">
Your code also is wide open to SQL injections and is using the deprecated mysql_ functions. You should update to mysqli or pdo and be using prepared statements with parameterized queries.
More on SQL injections:
http://php.net/manual/en/security.database.sql-injection.phpHow can I prevent SQL injection in PHP?https://www.owasp.org/index.php/SQL_Injection_Prevention_Cheat_Sheet#Defense_Option_1:_Prepared_Statements_.28Parameterized_Queries.29