ID: 22847
Updated by: [EMAIL PROTECTED]
Reported By: jparneodo at yahoo dot fr
-Status: Verified
+Status: Bogus
Bug Type: Scripting Engine problem
Operating System: *
PHP Version: 4CVS, 5CVS (2004-04-13)
New Comment:
RTFM
"true global variable imported inside a function scope with the global
statement actually creates a reference to the global variable. This can
lead to unexpected behaviour which the following example addresses.."
Previous Comments:
------------------------------------------------------------------------
[2003-08-06 19:16:47] [EMAIL PROTECTED]
The problem can be replicated with a simpler script:
<?php
class A {
var $b=1;
function test()
{
global $g;
$g =& $this->b;
}
}
$n = new A();
$g = "BAR";
$n->test();
var_dump($g);
?>
The problem itself appears to be ZE's inability to make a variable
imported using global a reference. if $GLOBALS['var_name'] is used the
script works correctly
------------------------------------------------------------------------
[2003-03-24 06:19:35] jparneodo at yahoo dot fr
function cmp($a,$b){
global $g;
var_dump($g); // NULL here
if($g[$a]>$g[$b]){
return -1;
}elseif($g[$a]<$g[$b]){
return 1;
}else{
return 0;
}
}
class A {
var $aa=array('B'=>2,'A'=>1,'C'=>3);
function sortme(){
global $g;
$g=&$this->aa;
uksort($g,'cmp');
}
}
$a=new A;
$a->sortme(); // Don't work
$g=&$a->aa;
uksort($g,'cmp'); // Work
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=22847&edit=1
