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<?php function generates() { $a = (yield 1); $b = (yield 2); assert($b != null); yield 1; } $g = generates(); foreach ($g as $val) { $g->send($val); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught AssertionError: assert($b != null) in /in/tYN2p:8 Stack trace: #0 /in/tYN2p(8): assert(false, 'assert($b != nu...') #1 /in/tYN2p(14): generates() #2 {main} thrown in /in/tYN2p on line 8
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Warning: assert(): assert($b != null) failed in /in/tYN2p on line 8
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Warning: assert(): Assertion failed in /in/tYN2p on line 8
Output for 5.4.1 - 5.4.45
Parse error: syntax error, unexpected '1' (T_LNUMBER) in /in/tYN2p on line 5
Process exited with code 255.

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