CODEWITHSUNDEEP
php
VyR
VyR

Reputation: 231

PHP: why not is possible var var with $GLOBALS?

from https://www.php.net/manual/en/language.variables.variable.php

this work so cool:

$Z = ARRAY(1, 2, 3);
$H = 'Z';
print_r($$H);

then why this never work:

$Q = 'GLOBALS';
print_r($$Q);

Upvotes: 0

Views: 41

Answers (1)

Progman
Progman

Reputation: 19546

The documentation on variable variables states that it isn't possible to access superglobal variables that way:

Warning Please note that variable variables cannot be used with PHP's Superglobal arrays within functions or class methods. The variable $this is also a special variable that cannot be referenced dynamically.

Upvotes: 1

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