Online PHP editor | refs for UdJ3B

<?php $data = Array( Array ( 0 => 'Charcoal', 1 => 'Natural Gas', 2 => 'Combo' ), Array ( 0 => 'Charcoal', 1 => 'Propane', 2 => 'Combo' ), Array ( 0 => 'Charcoal', 1 => 'Propane', 2 => 'Natural Gas', 3 => 'Combo' ), Array ( 0 => 'Natural Gas', ), Array ( 0 => 'Natural Gas', 1 => 'Propane', ), Array ( 0 => 'Propane', ), Array ( 0 => '660 sq. inches' ), Array ( 0 => '740 sq. inches' ), Array ( 0 => '761 sq. inches' ), Array ( 0 => '788 sq. inches' ), Array ( 0 => '792 sq. inches' ) ); $result = array_unique(call_user_func_array('array_merge', $data)); var_dump($result);