Bug #62097 [Wfx]: New behavior of string == has a compatibility problem

Edit report at https://bugs.php.net/bug.php?id=62097&edit=1 ID: 62097 Updated by: cataphract@php.net Reported by: kazuo at o-ishi dot jp Summary: New behavior of string == has a compatibility problem Status: Wont fix Type: Bug Package: Scripting Engine problem Operating System: Gentoo Linux PHP Version: 5.4.4RC1 Block user comment: N Private report: N New Comment: On a closer look, what's mentioned in the e-mail is not exactly the same thing because I was comparing a "always string" comparison and a string comparison as a fallback to a float comparison. In any case, the problem you're mentioning could only be solved by a custom comparison function, a solution that was not favored in this discussion. Previous Comments: ------------------------------------------------------------------------ [2012-05-21 23:05:11] cataphract@php.net Thanks for your report. I raised this issue in internals: http://www.mail-archive.com/internals@lists.php.net/msg58598.html (see near the end) and this was deemed a "very narrow use case". So I'm marking this Wont Fix now, but feel free to take this issue to the internals mailing list. ------------------------------------------------------------------------ [2012-05-21 17:09:25] kazuo at o-ishi dot jp Description: ------------ The behavior of string comparison using == operator is changed in https://github.com/php/php-src/commit/47db8a9aa19f6e17a1018becf9978315c79a1cb0 to fix bug #54547. This change has a compatibility problem. Before this change (PHP 5.4.3), "01234" == "1234" => TRUE (OK) "09223372036854775808" == "9223372036854775808" => TRUE (compared as float, but result is acceptable) After change, "01234" == "1234" => TRUE (OK) "09223372036854775808" == "9223372036854775808" => FALSE (compared as string) This behavior is not reasonable in that case. New rule is not clear. I think this change should be reverted, before release of 5.4.4. Test script: --------------- echo (("01234" == "1234") ? "true" : "false"), "\n"; echo (("09223372036854775808" == "9223372036854775808") ? "true" : "false"), "\n"; Expected result: ---------------- true true Actual result: -------------- true false ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=62097&edit=1