| Query String |
| .$_GET |
| The built-in $_GET function is used to collect values in a form with method="get" |
Information 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 information to send (max. 100 characters). |
<form action="welcome.php" method="get">
Name: <input type="text" name="fname" />
Age: <input type="text" name="age" />
<input type="submit" />
</form> |
|
When the user clicks the "Submit" button, the URL sent to the server could look something like this: |
| http://www.srishtis.com/welcome.php?fname=vignu&age=26 |
|
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! |
|
When using method="get" in HTML forms, all variable names and values are displayed in the URL. |
|
| $_POST |
The built-in $_POST function is used to collect values from a form sent with method="post". |
Information sent from a form with the POST method is invisible to others and has no limits on the amount of information to send. |
<form action="welcome.php" method="post">
Name: <input type="text" name="fname" />
Age: <input type="text" name="age" />
<input type="submit" />
</form> |
|
When the user clicks the "Submit" button, the URL will look like this: |
| http://www.srishtis.com/welcome.php |
|
The "welcome.php" file can now use the $_POST function to collect form data (the names of the form fields will automatically be the keys in the $_POST array): |
Welcome <?php echo $_POST["fname"]; ?>!<br />
You are <?php echo $_POST["age"]; ?> years old. |
|
| |
|
|
