3v4l.org

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<?php function gen1() { yield 1; yield; yield 3; } foreach(gen1() as $val) { var_dump($val); }
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
int(1) NULL int(3)
Output for 5.4.2 - 5.4.45
Parse error: syntax error, unexpected '1' (T_LNUMBER) in /in/nG5Fc on line 4
Process exited with code 255.
preferences:
154.09 ms | 401 KiB | 256 Q