3v4l.org

run code in 300+ PHP versions simultaneously
<?php function lazyCall(callable $c) { $args = func_get_args(); yield $c(...$args); } function returnSome() { echo "Some", "\n"; yield "some"; } $g = lazyCall("returnSome"); echo "Foo"; $g->next(); echo "Bar"; $g->current();
Output for 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
FooBar
Output for 5.5.24 - 5.5.35
Parse error: syntax error, unexpected '.' in /in/u8Luj on line 5
Process exited with code 255.
Output for 5.4.2 - 5.4.45
Parse error: syntax error, unexpected '$c' (T_VARIABLE) in /in/u8Luj on line 5
Process exited with code 255.
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152.16 ms | 401 KiB | 224 Q