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run code in 150+ php & hhvm versions
Bugs & Features
<?php $foo = 'skjdhfcjksdhfkjdshvjk'; var_dump(array_key_exists('bar',$foo));
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: array_key_exists() expects parameter 2 to be array, string given in /in/KFf60 on line 4 NULL
Output for hhvm-3.10.0 - 3.12.0
Warning: Invalid operand type was used: array_key_exists expects an array or an object; false returned. in /in/KFf60 on line 4 bool(false)
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/KFf60 on line 4 bool(false)
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/KFf60 on line 4 bool(false)