PHP $_GET Function
The built-in $_GET function is used to collect values in a form with
method="get".
The $_GET Function
The built-in $_GET function is used to collect values from a form
sent 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.
Example
<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.w3schools.com/welcome.php?fname=Peter&age=37
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 to use method="get"?
When using method="get" in HTML forms, all variable names and values
are displayed in the URL.
Note: This method should not
be used when sending passwords or other sensitive information!
However, because the variables are displayed in the URL, it is
possible to bookmark the page. This can be useful in some cases.
Note: The get method is not suitable for very large variable values.
It should not be used with values exceeding 2000 characters.
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