From: [EMAIL PROTECTED]
Operating system: Linux 2.2.20
PHP version: 4.0.6
PHP Bug Type: Arrays related
Bug description: Reproductible crash (simple script) related to default
variables/arrays
This following simple script will crash both PHP 4.06 (module and cgi) and
previous 4.05 but NOT 4.03pl1 (?!), and might be related to the following
bug ID's:
Bug id #12776
Bug id #14281
It seems that there's a problem between array variables, default values and
empty arrays accessed through index (a null variable used as array using an
index)
If you change the code and delete the first foo variable (in function and
in the call), this won't crash (!)
I am still trying to simplify this code to find an immediate and obvious
cause for the core dump, but IMHO this script is yet simple enough to
detect a problem.
<pre>
<?php
// will work without first dummy parameter
Function FooBar($foo,$depth=10,$bar=array()) {
if ($depth<0)
return "";
// echo ..
echo "in FooBar (".$depth.")\n";
// This part will cause damages soon
return FooBar($foo,$depth-1,$bar)
. FooBar2("",$bar)
. $foo["foo_bar"][13345879];
}
// will work without first dummy parameter
Function FooBar2($foo,$bar=array()) {
// This part shall seg fault ..
if (!$bar["foo_bar"]) {
$bar["foo_bar"]=$bar["foo_bar"]+1;
}
// echo ..
echo "in FooBar2 (".$foo.")\n";
// This part will cause memory damages..
$if_I_do_that_this_will_crash=serialize($bar);
return "";
}
FooBar("");
?>
</pre>
--
Edit bug report at: http://bugs.php.net/?id=14374&edit=1
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