Online PHP editor | refs for BIdbf

<?php // Everything you enter here will be executed by our servers. Try it! $tables = array( 0 => array('index_length' => 1, 'data_length' => 2), 1 => array('index_length' => 3, 'data_length' => 4) ); $size = array_reduce($tables, function ($value, $item) { return $value + $item['index_length'] + $item['data_length']; });