Re: Bug #14374 Updated: Reproductible crash (simple script) related to default variables/arrays

I saw the other reports he referred to are open? Did you check those? --Jani On 7 Dec 2001 derick@php.net wrote: >ID: 14374 >Updated by: derick >Reported By: xroche@free.fr >Old Status: Open >Status: Closed >Bug Type: Arrays related >Operating System: Linux 2.2.20 >PHP Version: 4.0.6 >New Comment: > >I can not reproduce this with php 4.1.0RC5 or php 4.2.0dev, so considered fixed. >(You can try yourself with www.php.net/~zeev/php-4.1.0RC5.tar.gz) >PHP 4.1.0 will be released in a few days now. > >Derick > >Previous Comments: >------------------------------------------------------------------------ > >[2001-12-07 06:09:05] xroche@free.fr > >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 this bug report at http://bugs.php.net/?id=14374&edit=1 > > >