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run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array('toto' => null); isset($array['toto']); array_key_exists($array, 'toto');
Output for 5.3.0 - 7.1.0
Warning: array_key_exists() expects parameter 2 to be array, string given in /in/pVAFu on line 5
Output for 4.3.2 - 5.2.17
Warning: array_key_exists(): The second argument should be either an array or an object in /in/pVAFu on line 5
Output for 4.3.0 - 4.3.1
Warning: array_key_exists() [http://www.php.net/function.array-key-exists]: The second argument should be either an array or an object in /in/pVAFu on line 5