Online PHP editor | refs for hR8tk

<?php $data = array( array( 'name' => 'Supplier A', 'productName' => 'ABC', ), array( 'name' => 'Supplier B', 'productName' => 'ABC', ), array( 'name' => 'Supplier B', 'productName' => 'DEF', ), array( 'name' => 'Supplier C', 'productName' => 'XYZ', ), array( 'name' => 'Supplier D', 'productName' => 'BBB', ), array( 'name' => 'Supplier E', 'productName' => 'ABCDEF', ), array( 'name' => 'Supplier F', 'productName' => 'ABCDEF', ), ); $result = array_filter( $data, function($value) use ($data) { return count(array_filter( $data, function ($match) use ($value) { return $match['productName'] === $value['productName']; } ) > 1); } ); var_dump($result);