3v4l.org

run code in 300+ PHP versions simultaneously
<?php function baz(){ yield 1; } function bar($x){ return $x ? baz() : 'a'; } var_dump(bar(true)); var_dump(bar(false));
Output for 8.4.1 - 8.4.12
object(Generator)#1 (1) { ["function"]=> string(3) "baz" } string(1) "a"
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25
object(Generator)#1 (0) { } string(1) "a"
preferences:
97.16 ms | 409 KiB | 5 Q