The $_GET function in PHP is used to gather data of form submit with method="get". The data sent using get method is visible in browser's address bar.
For sending username & password , get method is not secure. It also has limits on the amount of information to send. Given below form uses get method for sending data :
<form action="registration.php" method="get"> Name : <input type="text" name="name" /> Address : <input type="text" name="address" /> <input type="submit" /> </form>
You can fetch value of submitted form in a PHP page using $_GET method as follows :
Your Name :<?php echo $_GET["name"]; ?>.<br /> Address :<?php echo $_GET["address"]; ?>
The above lines display the name & address values of submitted form.
The Given below the complete example, which will give you a clear idea :
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>GET Method in PHP</TITLE>
</HEAD>
<BODY>
<h3>Fill the Below Form :</h3>
<form action="registration.php" method="get">
Name: <input type="text" name="name" /><br>
Address : <input type="text" name="address" /><br/>
<input type="submit" name="submit"/>
</form>
</BODY>
</HTML>
<?php
if(isset($_GET['submit'])){
?>
Your Name :<?php echo $_GET["name"]; ?>.<br />
Address :<?php echo $_GET["address"]; ?>
<?php
}
?>
First, you need to fill up the form as :

When you press the submit button, it will show you the following :(Also, See the browser address bar)