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

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