wc order param dynamic handler

sample.php

$array = [
    
    'buy-1' => [
        'products' => [
            [
                'id' => 20,
                'quantity' => 1
            ]
        ]
    ]
];


$params = 'buy-1';

preg_match('@\w+-\d+@',$params,$matches);

if(isset($matches[0])) {

    if(array_key_exists($matches[0],$array)) {

        //add order
        //loop product added 
        foreach($array[$matches[0]]['products'] as $product) {

            echo "add product " . $product['id'] . " " . $product['quantity'];
        }
    }
    else {

        //product not found
        //parameter data not found

        echo "product not found.";
    }
}