What is the meaning of $GLOBALS? How to fix it

What is the meaning of $GLOBALS?
Does the $GLOBALS contain the value of $_get?

For example, is $_get[' t '] the same as $GLOBALS [' t ']?


I wrote this in class:


if (Isset ($GLOBALS [' t ']))
echo $GLOBALS [' t '];

Exit ($_get[' t ');

?>

When I open the Test.php?t=fuck,

Just a fuck, no second fuck?

I'm so embarrassed ..... How do you understand that?

------Solution--------------------
Why is it the same?
Since $GLOBALS does not contain the value of $_get, how can it be the same?
You test it yourself:

PHP Code

Test

  
  ';p rint_r ($_get);
------Solution--------------------
$GLOBALS is to define a global variable

$_get is getting the value of submitting the form using Get mode
------Solution--------------------
$_get[' a '] = = = $GLOBALS [' _get '] [' a ']
