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<?php $x = call_user_func(function () { yield 1; }); foreach ($x as $k) {} foreach ($x as $k) {}
Output for 7.0.0 - 7.4.0rc2
Fatal error: Uncaught Exception: Cannot traverse an already closed generator in /in/Bh3iB:5 Stack trace: #0 {main} thrown in /in/Bh3iB on line 5
Process exited with code 255.
Output for 5.5.0 - 5.6.40
Fatal error: Uncaught exception 'Exception' with message 'Cannot traverse an already closed generator' in /in/Bh3iB:5 Stack trace: #0 /in/Bh3iB(5): unknown() #1 {main} thrown in /in/Bh3iB on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '1' (T_LNUMBER) in /in/Bh3iB on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_LNUMBER in /in/Bh3iB on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/Bh3iB on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/Bh3iB on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/Bh3iB on line 3
Process exited with code 255.