From: sagi at boom dot org dot il
Operating system: Linux
PHP version: 4CVS-2003-07-14 (stable)
PHP Bug Type: Arrays related
Bug description: foreach doesnt work well inside recursive functions
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 bug report at http://bugs.php.net/?id=24646&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=24646&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=24646&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=24646&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=24646&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=24646&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=24646&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=24646&r=support
Expected behavior: http://bugs.php.net/fix.php?id=24646&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=24646&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=24646&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=24646&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=24646&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=24646&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=24646&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=24646&r=gnused
