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run code in 150+ php & hhvm versions
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<?php function test($p1) { $asd = md5(sprintf($null['11'], $p1)) .'1'; return $asd; } test('asdfgg');
Output for 5.5.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: null in /in/h11O4 on line 4
Output for 4.3.0 - 5.4.45