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run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array( array("item_data"=>array(1,2,3)), array("item_data"=>array(4,5,6)), array("item_data"=>array(7,8,9)) ); function merge($prev, $now) { return array_merge($prev, $now['item_data']); } array_reduce($arr, "merge", array());
Output for 4.3.0 - 5.0.2, 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Output for 5.0.3 - 5.2.17
Warning: array_merge(): Argument #1 is not an array in /in/b8Dsv on line 6 Warning: array_merge(): Argument #1 is not an array in /in/b8Dsv on line 6 Warning: array_merge(): Argument #1 is not an array in /in/b8Dsv on line 6