#24646 [Opn->Bgs]: foreach doesnt work well inside recursive functions
| From: | sniper@php.net | Date: | Mon, 14 Jul 2003 17:58:14 +0000 |
| Subject: | #24646 [Opn->Bgs]: foreach doesnt work well inside recursive functions | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-43970@lists.php.net to get a copy of this message | ||
ID: 24646
Updated by: sniper@php.net
Reported By: sagi at boom dot org dot il
-Status: Open
+Status: Bogus
Bug Type: Arrays related
Operating System: Linux
PHP Version: 4CVS-2003-07-14 (stable)
New Comment:
Please read the "Note:"'s from http://www.php.net/foreach
as this is not any bug.
Previous Comments:
------------------------------------------------------------------------
[2003-07-14 09:42:30] sagi at boom dot org dot il
Description:
------------
I'm trying to write a recursive function that uses foreach() on the
same array couple of times simultaneously.
However it looks like when going back to the original function foreach
doesn't continue where it stopped, but just continues running the code
after the foreach.
I tried the same with for() and it works right. in the attached code
there are the 2 lines that you can comment out to see how it works with
for() (comment foreach if you do).
Reproduce code:
---------------
<?php
$cats = array(
1 => array(0, 'parent 1'),
2 => array(0, 'parent 2'),
3 => array(0, 'parent 3'),
4 => array(1, 'sub1 of parent 1'),
5 => array(1, 'sub2 of parent 1'),
6 => array(2, 'sub1 of parent 2'),
7 => array(2, 'sub2 of parent 2'),
8 => array(1, 'sub3 of parent 1'),
9 => array(5, 'sub1 of parent 5'),
10 => array(2, 'sub3 of parent 2')
);
function showit($parent, $level)
{
global $cats;
foreach ($cats as $id => $category) {
// for ($id=1; $id <= count($cats); $id++) {
// $category =& $cats[$id];
if ($category[0] == $parent) {
print str_repeat("\t",$level).'('.$id.')
'.$category[1]."\n";
showit($id, $level+1);
}
}
}
showit(0, 0);
?>
Expected result:
----------------
(1) parent 1
(4) sub1 of parent 1
(5) sub2 of parent 1
(9) sub1 of parent 5
(8) sub3 of parent 1
(2) parent 2
(6) sub1 of parent 2
(7) sub2 of parent 2
(10) sub3 of parent 2
(3) parent 3
Actual result:
--------------
(1) parent 1
(4) sub1 of parent 1
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=24646&edit=1