Online PHP editor | refs for X6GLY

<?php $types = [ ['unique_codename' => 'cars', 'category' => 'vehicle', 'foo' => 'bar'], ['unique_codename' => 'fruit', 'category' => 'food', 'foo' => 'bar'], ['unique_codename' => 'vegetables', 'category' => 'food', 'foo' => 'bar'], ['unique_codename' => 'animals', 'category' => 'vehicle and food', 'foo' => 'bar'], ]; $products = [ ['codename' => 'fruit', 'name' => 'banana', 'other' => 'stuff'], ['codename' => 'fruit', 'name' => 'apple', 'other' => 'stuff'], ['codename' => 'vegetables', 'name' => 'cauliflower', 'other' => 'stuff'], ['codename' => 'cars', 'name' => 'audi', 'other' => 'stuff'], ['codename' => 'cars', 'name' => 'volvo', 'other' => 'stuff'], ]; foreach ($types as ['unique_codename' => $ucn, 'sorts' => &$ref[$ucn]]) { $ref[$ucn] = []; }; foreach ($products as ['codename' => $cn, 'name' => $ref[$cn][]['name']]); var_export($types);