3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a1 = array(1,3,5); echo array_key_exists(2, $a); ?>
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined variable: a in /in/VAb4o on line 3 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/VAb4o on line 3
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined variable: a in /in/VAb4o on line 3 Warning: Invalid operand type was used: array_key_exists expects an array or an object; false returned. in /in/VAb4o on line 3
Output for 5.0.4 - 5.2.17
Notice: Undefined variable: a in /in/VAb4o on line 3 Warning: array_key_exists(): The second argument should be either an array or an object in /in/VAb4o on line 3
Output for 4.3.2 - 5.0.3
Notice: Undefined variable: a in /in/VAb4o on line 3 Warning: array_key_exists(): The second argument should be either an array or an object in /in/VAb4o on line 3
Output for 4.3.0 - 4.3.1
Notice: Undefined variable: a in /in/VAb4o on line 3 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/VAb4o on line 3