How to check if $_GET is empty?

Question

How to check if $_GET is empty?

Answer 1

Just to provide some variation here: You could check for

if ($_SERVER["QUERY_STRING"] == null)

it is completely identical to testing $_GET.

Answer 2

I would use the following if statement because it is easier to read (and modify in the future)

if(!isset($_GET) || !is_array($_GET) || count($_GET)==0) {
   // empty, let's make sure it's an empty array for further reference
   $_GET=array();
   // or unset it 
   // or set it to null
   // etc...
}

Answer 3

<?php
if (!isset($_GET) || empty($_GET))
{
    // do stuff here
}

Answer 4

i guess the simplest way which doesn't require any operators is

if($_GET){
//do something if $_GET is set 
} 
if(!$_GET){
//do something if $_GET is NOT set 
} 

Answer 5

if (!$_GET) echo "empty";

why do you need such a checking?

lol
you guys too direct-minded.
don't take as offense but sometimes not-minded at all
$_GET is very special variable, not like others.
it is supposed to be always set. no need to treat it as other variables. when $_GET is not set and it's expected - it is emergency case and that's what "Undefined variable" notice invented for

Answer 6

Easy.

if (empty($_GET)) {
    // $_GET is empty
}