3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array( 0 => array ( 'id' => '3', 'notifications' => '1'), 1 => array ( 'id' => '4', 'notifications' => '1' ) ); $x = array_merge($arr[0],$arr[1]);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0