Req #75058 [NEW]: Check type on return of typehint arguments passed by reference.

From: email at davekok dot nl Operating system: any PHP version: Next Minor Version Package: PHP Language Specification Bug Type: Feature/Change Request Bug description:Check type on return of typehint arguments passed by reference. Description: ------------ When declaring a function with a type hinted argument passed by reference, the argument's type is not checked on the function's return. I would expect that when calling a function with a type hinted argument passed by reference. That the variable used will still contain data of that type when the function finishes. Test script: --------------- <?php function foo(int &$i) { $i = "string"; // incorrect type } function bar(?int &$i) { $i = null; // correct type } function baz(?int &$i) { $i = 4; // correct type } Expected result: ---------------- A error is thrown on foo's return stating that the variable $i has an incorrect type. Actual result: -------------- The code continues as if all is well. -- Edit bug report at https://bugs.php.net/bug.php?id=75058&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75058&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75058&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75058&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75058&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75058&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75058&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75058&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75058&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75058&r=support Expected behavior: https://bugs.php.net/fix.php?id=75058&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75058&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75058&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75058&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75058&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75058&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75058&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75058&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75058&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75058&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75058&r=mysqlcfg