3v4l.org

run code in 500+ PHP versions simultaneously
<?php function foo() { return null; yield 1; } var_dump( foo() );
Output for 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
object(Generator)#1 (1) { ["function"]=> string(3) "foo" }
Output for 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30
object(Generator)#1 (0) { }
preferences:
46.47 ms | 841 KiB | 4 Q