Doc #63406 [Opn->Csd]: Count *does* detect infinite recursion

Edit report at https://bugs.php.net/bug.php?id=63406&edit=1 ID: 63406 Updated by: salathe@php.net Reported by: n at p12a dot org dot uk Summary: Count *does* detect infinite recursion -Status: Open +Status: Closed Type: Documentation Problem Package: Documentation problem PHP Version: master-Git-2012-10-31 (Git) -Assigned To: +Assigned To: salathe Block user comment: N Private report: N New Comment: This bug has been fixed in the documentation's XML sources. Since the online and downloadable versions of the documentation need some time to get updated, we would like to ask you to be a bit patient. Thank you for the report, and for helping us make our documentation better. Committed requinix's patch. Previous Comments: ------------------------------------------------------------------------ [2012-11-12 22:33:45] salathe@php.net Automatic comment from SVN on behalf of salathe Revision: http://svn.php.net/viewvc/?view=revision&revision=328332 Log: count() does in fact discover recursion and issues an E_WARNING in response... but it will probably return a much higher number than it should. (doc #63406) -- Provided by anonymous #22227 (mail+php@requinix.net) ------------------------------------------------------------------------ [2012-11-03 01:07:18] mail+php at requinix dot net ...and the number may be wildly inaccurate. Sounds like a bug: counts first and stops recursion second? $a = array(1, 2, 3); $a[] =& $a; $a[] =& $a; $a[] =& $a; echo count($a, COUNT_RECURSIVE); // 78 Did you know you can easily submit changes to the online documentation? Look for the [edit] in the top-right corner of manual pages. I've submitted some changes for you: "count: detects recursion (bug #63406)" http://edit.php.net/?patchID=761&project=PHP ------------------------------------------------------------------------ [2012-10-31 19:37:23] n at p12a dot org dot uk Description: ------------ --- From manual page: http://www.php.net/function.count#refsect1-function.count- parameters --- The manual says "count() does not detect infinite recursion". But count() does. Test script: --------------- $a = array(); $a[] = &$a; echo count($a, 1), "\n" Expected result: ---------------- Most probably an out-of-memory error, which is what I get when infinitely recursing in a user-defined function. Actual result: -------------- PHP Warning: count(): recursion detected in Command line code on line 1 3 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=63406&edit=1