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<?php trait T1 { abstract protected function _doStuff(); } trait T2 { protected function _doStuff() { echo "Doing stuff in trait\n"; } } class C { use T1 { _doStuff as _traitDoStuff; } use T2 { _doStuff as _traitDoStuff; } protected function _doStuff() { echo "Doing stuff in class\n"; $this->_traitDoStuff(); } }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: An alias was defined for method _doStuff(), which exists in both T1 and T2. Use T1::_doStuff or T2::_doStuff to resolve the ambiguity in /in/HKC2p on line 16
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: An alias was defined for method _doStuff(), which exists in both T1 and T2. Use T1::_doStuff or T2::_doStuff to resolve the ambiguity in /in/HKC2p on line 16
Process exited with code 255.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Class C contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (C::_doStuff) in /in/HKC2p on line 16
Process exited with code 255.

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