3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(string $domain): \Generator { if (strtolower($domain) === 'localhost') { return '127.0.0.1'; } return yield from bar(); } function bar() { yield; return "42"; } $foo = foo("localhost"); foreach ($foo as $i) {} var_dump($foo->getReturn()); $foo = foo("not localhost"); foreach ($foo as $i) {} var_dump($foo->getReturn());

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26.87 ms | 405 KiB | 5 Q