Bug #68625 [NEW]: By-ref parameters with array/callable typehints should be permitted

From: ajf at ajf dot me Operating system: PHP version: 5.6.4 Package: PHP Language Specification Bug Type: Bug Bug description:By-ref parameters with array/callable typehints should be permitted Description: ------------ The language spec states this in spec/13-functions.md: *parameter-declaration* must not contain & if *type-hint* is array or callable. Yet PHP allows this: $ php -r 'function a(array &$foo) {} $a = []; a($a);' $ php -r 'function a(callable &$foo) {} $a = "strlen"; a($a);' $ Why, then, is it prohibited in the spec? -- Edit bug report at https://bugs.php.net/bug.php?id=68625&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68625&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68625&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68625&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=68625&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=68625&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=68625&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=68625&r=needscript Try newer version: https://bugs.php.net/fix.php?id=68625&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=68625&r=support Expected behavior: https://bugs.php.net/fix.php?id=68625&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=68625&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=68625&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=68625&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68625&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=68625&r=dst IIS Stability: https://bugs.php.net/fix.php?id=68625&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=68625&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=68625&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=68625&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=68625&r=mysqlcfg