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run code in 150+ php & hhvm versions
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<?php class Foo { function bar($derp, /*array*/ $array, $is_recursive = false) { if (is_bool($array)) { $is_recursive = $array; $array = array(); } var_dump(is_recursive); } } $d = new Foo; $d->bar('derp', true);
Output for 5.5.0 - 7.1.0
Notice: Use of undefined constant is_recursive - assumed 'is_recursive' in /in/CEPWv on line 8 string(12) "is_recursive"
Output for 4.3.0 - 5.4.45
string(12) "is_recursive"