3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gen1() { yield 11; yield 12; yield 13; } function gen2() { yield from [1, 2, 3]; yield 21; yield 22; yield 23; } foreach (gen2() as $val) { echo "$val\n"; }
Output for 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
1 2 3 21 22 23
Output for 5.6.8 - 5.6.28
Parse error: syntax error, unexpected ',', expecting ']' in /in/UqpH4 on line 10
Process exited with code 255.
Output for 5.5.24 - 5.5.35
Parse error: syntax error, unexpected '[' in /in/UqpH4 on line 10
Process exited with code 255.
Output for 5.4.2 - 5.4.45
Parse error: syntax error, unexpected '11' (T_LNUMBER) in /in/UqpH4 on line 4
Process exited with code 255.
preferences:
216.41 ms | 401 KiB | 271 Q