Bug #70021 [Opn]: incorrect associativity of ternary operator

Edit report at https://bugs.php.net/bug.php?id=70021&edit=1 ID: 70021 Updated by: cmb@php.net Reported by: mega at ioexception dot at Summary: incorrect associativity of ternary operator Status: Open Type: Bug Package: Scripting Engine problem PHP Version: 7.0Git-2015-07-08 (Git) Block user comment: N Private report: N New Comment: Oops, wrong link to [1]. Should have been <http://markmail.org/thread/5bjy2xnu2vrgxxmy>. Previous Comments: ------------------------------------------------------------------------ [2015-07-08 13:44:10] cmb@php.net There has been quite some discussion about this isse last December[1], but to my knowledge nothing came out of it. Anyhow, PHP 7.0.0beta1 has already been tagged[2] which is commonly regarded as feature freeze. [1] <http://cmsimpleforum.com/viewtopic.php?f=29&t=8821> [2] <https://github.com/php/php-src/releases/tag/php-7.0.0beta1> ------------------------------------------------------------------------ [2015-07-08 12:37:37] mega at ioexception dot at A typo has been made in the description. The result in other languages that implement the ternary operator the result of the test script is 'Toast' not 'Swiss Cheese'. ------------------------------------------------------------------------ [2015-07-08 12:18:28] mega at ioexception dot at Description: ------------ zend_language_parser.y on line 81 gives the '?:' operator left associativity when it should be right as in virtually every other language that has a ternary operator. [see also bug 61915] Due to the massive amount of changes in PHP 7, some of which break backwards compatibility, it would be a great idea to fix this long standing issue. Although it has been pointed out before that this behavior is documented it's a non-sane and unconventional result. In other languages that implement the ternary operator the result of the test script is 'Swiss Cheese'. This result is expected and conventional. This issue has been pointed out multiple times before (61915, 25356). Test script: --------------- $arg = "3"; $food = ( ($arg == '1') ? 'Banana' : ($arg == '2') ? 'Apple' : ($arg == '3') ? 'Toast' : ($arg == '4') ? 'Cantalope' : ($arg == '5') ? 'Swiss Cheese' : 'Fig Newton Cookie' ); echo $food; Expected result: ---------------- Toast Actual result: -------------- Swiss Cheese ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=70021&edit=1