PHP $_GET Function

The built-in $_GET function is used to collect values in a form with method="get".

The datas sent from a form with the GET  method is visible to everyone ( It will be displayed in the browser's address bar) and has limits on the amount of data to send.

Example:

<form action="welcome.php" method="get">
Name: <input type="text" name="fname" />
Age: <input type="text" name="age" />
<input type="submit" />
</form>

The "welcome.php" file can now use the $_GET function to collect form data (the names of the form fields will automatically be the keys in the $_GET array):

Welcome <?php echo $_GET["fname"]; ?>.<br />
You are <?php echo $_GET["age"]; ?> years old!