Podręcznik PHP
Poprzedni | Rozdział 14. References Explained | Następny

# What References Are Not

As said before, references aren't pointers. That means, the following construct won't do what you expect:

`<?php function foo (&$var) { $var =& $GLOBALS["baz"]; } foo($bar); ?>`

What happens is that `$var` in `foo` will be bound with `$bar` in caller, but then it will be re-bound with `$GLOBALS["baz"]`. There's no way to bind `$bar` in the calling scope to something else using the reference mechanism, since `$bar` is not available in the function `foo` (it is represented by `$var`, but `$var` has only variable contents and not name-to-value binding in the calling symbol table).

Poprzedni | Spis treści | Następny
What References Do | Początek rozdziału | Passing by Reference