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$_SERVER> <Superglobals
Last updated: Fri, 20 Nov 2009

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$GLOBALS

$GLOBALSReferences all variables available in global scope

Opis

An associative array containing references to all variables which are currently defined in the global scope of the script. The variable names are the keys of the array.

Przykłady

Przykład #1 $GLOBALS example

<?php
function test() {
    
$foo "local variable";

    echo 
'$foo in global scope: ' $GLOBALS["foo"] . "\n";
    echo 
'$foo in current scope: ' $foo "\n";
}

$foo "Example content";
test();
?>

Powyższy przykład wyświetli coś podobnego do:

$foo in global scope: Example content
$foo in current scope: local variable

Notatki

Informacja: To jest zmienna 'superglobalna' lub automatycznie ustawiona na globalną. To po prostu oznacza, że jest dostępna w każdym miejscu skryptu. Nie jest konieczne użycie global $zmienna; aby mieć do niej dostęp w funkcjach i metodach.

Informacja: Variable availability
Unlike all of the other superglobals, $GLOBALS has essentially always been available in PHP.



$_SERVER> <Superglobals
Last updated: Fri, 20 Nov 2009
 
add a note add a note User Contributed Notes
$GLOBALS
williams at 3cisd dot com
28-Jul-2009 10:53
Better yet, use print_r.  While var_dump does detect the recursion that var_export fails on, it seems to recurse one level first for my setup.  So var_dump ends up printing all globals twice, but print_r prints them only once since it detects the recursion right away.  Serialize seems to not detect the recursion at all either, similar to var_export.
David
14-Aug-2008 12:47
Though you can use var_dump to output the value of $GLOBALS.
ravenswd at yahoo dot com
12-Aug-2008 08:02
Keep in mind that $GLOBALS is, itself, a global variable. So code like this won't work:

<?php
   
print '$GLOBALS = ' . var_export($GLOBALS, true) . "\n";
?>

This results in the error message: "Nesting level too deep - recursive dependency?"

$_SERVER> <Superglobals
Last updated: Fri, 20 Nov 2009
 
 
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