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run code in 150+ php & hhvm versions
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<?php function test($var1, $var2 = null) { echo $var1; echo "\n"; echo $var2; echo "\n"; } test('hallo','hannes');
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
hallo hannes