$_GET
contains the keys / values that are passed to your script in the URL.
If you have the following URL :
http://www.example.com/test.php?a=10&b=plop
Then $_GET
will contain :
array
'a' => string '10' (length=2)
'b' => string 'plop' (length=4)
Of course, as $_GET
is not read-only, you could also set some values from your PHP code, if needed :
$_GET['my_value'] = 'test';
But this doesn't seem like good practice, as $_GET
is supposed to contain data from the URL requested by the client.
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