From: lev at centers dot ru
Operating system: FreeBSD 4.6
PHP version: 4.3.1
PHP Bug Type: Scripting Engine problem
Bug description: recursive function corrupt foreach loop
<?
// Bag: recursive function corrupt foreach loop
// This bag is near bag #14607 but not equal
//
// ------- description of functions ----------------
// Incorrect function
function out_node1($k,$level)
{
global $name,$ind;
for($i=0;$i<$level;$i++) echo " ";
echo "$name[$k]<BR>\n";
foreach($ind as $i=>$index) {
if($index==$k) out_node1($i,$level+1);
}
}
// Correct function (bypass bag)
function out_node($k,$level)
{
global $name,$ind;
for($i=0;$i<$level;$i++) echo " ";
echo "$name[$k]<BR>\n";
foreach($ind as $i=>$index) {
if($index==$k) $node[]=$i;
}
for($i=0;$i<count($node);$i++) out_node($node[$i],$level+1);
}
//------------------------------------------------------------
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1251">
</head>
<body>
<?
// ------- tree structure ----------------
// Tree: number parrent index
// node1 0 -1
// leaf1 1 0
// leaf2 2 0
// node2 3 0
// leaf3 4 3
// leaf4 5 3
// ------- body of script ----------------
$name=Array('node1','leaf1','leaf2','node2','leaf3','leaf4');
$ind=Array('-1','0','0','0','3','3');
//------------------------------------------------------------
echo "<BR><B>Incorrect example</B><BR>\n";
// print tree
out_node1(0,0);
echo "<BR><B>Correct example</B><BR>\n";
// print tree
out_node(0,0);
?>
</body>
</html>
--
Edit bug report at http://bugs.php.net/?id=22879&edit=1
--
Try a CVS snapshot: http://bugs.php.net/fix.php?id=22879&r=trysnapshot
Fixed in CVS: http://bugs.php.net/fix.php?id=22879&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=22879&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=22879&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=22879&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=22879&r=support
Expected behavior: http://bugs.php.net/fix.php?id=22879&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=22879&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=22879&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=22879&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=22879&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=22879&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=22879&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=22879&r=gnused
