Bug #77507 [NEW]: No fatal error when implementing interface method with parameter type declared

From: a dot owrew at gmail dot com Operating system: Linux PHP version: 7.2.14 Package: PHP Language Specification Bug Type: Bug Bug description:No fatal error when implementing interface method with parameter type declared Description: ------------ As it states in the summary, up until PHP 7.1.26, implementing an interface method without providing the full signature would cause a fatal error. Starting PHP 7.2.0 it appears to be more lax. In the example, the missing string parameter type is causing a fatal error prior to PHP 7.2.0. Test script: --------------- <?php interface SomeInterface { public function setSome(string $some); } class SomeClass implements SomeInterface { public function setSome($some){} } Expected result: ---------------- Fatal error: Declaration of SomeClass::setSome($some) must be compatible with SomeInterface::setSome(string $some) -- Edit bug report at https://bugs.php.net/bug.php?id=77507&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77507&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77507&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77507&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77507&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77507&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77507&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77507&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77507&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77507&r=support Expected behavior: https://bugs.php.net/fix.php?id=77507&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77507&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77507&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77507&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77507&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77507&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77507&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77507&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77507&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77507&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77507&r=mysqlcfg