Online PHP editor | refs for KSTJD

<?php $records = array( array( 'id' => 2135, 'extra' => array( 'jelou' => 'hi', 'first_name' => 'Albert' ), ), array( 'id' => 2145, 'extra' => array( 'jelou' => 'hio', 'first_name' => 'Alberto' ), ), array( 'id' => 2155, 'extra' => array( 'jelou' => 'hia', 'first_name' => 'Alberta' ), ) ); print_r($records); $first_names = array_column($records, 'jelou'); print_r($first_names);