Doc #72500 [Asn->Opn]: 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: kalle@php.net Reported by: gwenael dot chailleu at gmail dot com Summary: Imprecision about compatibility of "Variable variables and global" -Status: Assigned +Status: Open Type: Documentation Problem Package: Documentation problem PHP Version: 7.0.8 -Assigned To: aharvey +Assigned To: Block user comment: N Private report: N Previous Comments: ------------------------------------------------------------------------ [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