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run code in 150+ php & hhvm versions
Bugs & Features
<?php $suggestion = 'pie'; var_dump( array_key_exists('Key', $suggestion), $suggestion['Key'] );
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: array_key_exists() expects parameter 2 to be array, string given in /in/QAK5d on line 6 Warning: Illegal string offset 'Key' in /in/QAK5d on line 7 NULL string(1) "p"
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/QAK5d on line 6 bool(false) string(1) "p"
Output for 5.3.0 - 5.3.29
Warning: array_key_exists() expects parameter 2 to be array, string given in /in/QAK5d on line 6 NULL string(1) "p"
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/QAK5d on line 6 bool(false) string(1) "p"
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/QAK5d on line 6 bool(false) string(1) "p"