Doc #72500 [Opn->Csd]: Imprecision about compatibility of "Variable variables and global"

Edit report at https://bugs.php.net/bug.php?id=72500&edit=1 ID: 72500 Updated by: cmb@php.net Reported by: gwenael dot chailleu at gmail dot com Summary: Imprecision about compatibility of "Variable variables and global" -Status: Open +Status: Closed Type: Documentation Problem Package: Documentation problem PHP Version: 7.0.8 -Assigned To: +Assigned To: cmb 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. Previous Comments: ------------------------------------------------------------------------ [2018-04-08 17:23:08] cmb@php.net Automatic comment from SVN on behalf of cmb Revision: http://svn.php.net/viewvc/?view=revision&amp;revision=344640 Log: Fix #72500: Imprecision about compatibility of &quot;Variable variables and global&quot; ------------------------------------------------------------------------ [2016-06-27 09:43:51] cmb@php.net I agree that this section[1] is not clear enough, and that the example is indeed more related to the new uniform variable syntax[2]. At least variable variables appear to work fine with global, see <https://3v4l.org/fvtGd>. I'm assigning to Adam who made the relevant commit (r337333). Can you please clarify, Adam? [1] <http://php.net/manual/en/migration70.incompatible.php#migration70.incompatible.variable-handling.global> [2] <https://wiki.php.net/rfc/uniform_variable_syntax> ------------------------------------------------------------------------ [2016-06-27 08:24:27] gwenael dot chailleu at gmail dot com Description: ------------ Hello, I can read in http://php.net/manual/fr/migration70.incompatible.php that "Variable variables can no longer be used with the global keyword. ". In my interpretation of this warning "global $$var;" is no longer a valid syntax and must be replaced by "global ${$var};" . But, obviously, "global $$var;" it still accepted (only tested in php 7.0.4). Is this particular syntax planned to be removed ? The code example given (global $$foo->bar;) should rather illustrate the new left-to right evaluation order of the expressions including variable variables syntax. Thanks for your answer ! ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=72500&edit=1