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run code in 150+ php & hhvm versions
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<?php function test($args = array()) { $foo = null; $bar = null; $baz = null; extract($args); var_dump($foo); var_dump($bar); var_dump($baz); } test(array('foo' => 'foo', 'baz' => 'baz'));
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(3) "foo" NULL string(3) "baz"