Online PHP editor | output for uHXu6

<?php $products = array( array( 'product_name' => 'My First Product', 'price' => 50, 'sizes' => [ 'S', 'L', 'XL' ] ), array( 'product_name' => 'My Second Product', 'price' => 45, 'sizes' => [ 'S', 'M', 'L', 'XL' ] ) ); $productNames = array(); foreach ($products as $product) { if (in_array('M', $product['sizes'])) $productNames[] = $product['product_name']; } print_r($productNames);