Bug #71614 [Fbk->NoF]: echo "${str{1}}"; raises syntax error

Edit report at https://bugs.php.net/bug.php?id=71614&edit=1 ID: 71614 Updated by: php-bugs@lists.php.net Reported by: yohgaki@php.net Summary: echo "${str{1}}"; raises syntax error -Status: Feedback +Status: No Feedback Type: Bug Package: Documentation problem Operating System: irrelevant PHP Version: Irrelevant Private report: N New Comment: No feedback was provided. The bug is being suspended because we assume that you are no longer experiencing the problem. If this is not the case and you are able to provide the information that was requested earlier, please do so and change the status of the bug back to "Re-Opened". Thank you. Previous Comments: ------------------------------------------------------------------------ [2016-02-19 05:53:00] yohgaki@php.net Thanks. I didn't think of $$. We may improve the doc http://jp2.php.net/manual/en/language.types.string.php {$} for variable expression, ${} for variable name resolution and few more examples invalid expressions. ------------------------------------------------------------------------ [2016-02-18 23:07:50] stas@php.net Not sure I understand - where's the bug in here and what would you expect to happen? str{1} is not a valid token for variable name, and is not a valid string offset operation since str is not variable - $str is. ------------------------------------------------------------------------ [2016-02-18 03:54:26] yohgaki@php.net @nikic Deprecating ${} is possible resolution. One concern is ${} is common in shell scripting languages. https://www.gnu.org/software/bash/manual/bashref.html ------------------------------------------------------------------------ [2016-02-17 09:57:52] nikic@php.net This "bug" is best solved by deprecating the ${} interpolation syntax for non-expressions. ------------------------------------------------------------------------ [2016-02-17 04:34:32] yohgaki@php.net Description: ------------ Both ${var} and {$var} are supposed to work, but ${$var} raises syntax error. Test script: --------------- php > $str = 'abc'; php > echo "${str{1}}"; PHP Parse error: syntax error, unexpected '{' in php shell code on line 1 php > echo "{$str{1}}"; b ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=71614&edit=1