PHP函数优化中的数据结构选择

$users = [    ['id' => 1, 'name' => 'John'],    ['id' => 2, 'name' => 'Jane'],];foreach ($users as $user) {    print_r($user);}

$products = [    'product1' => [        'name' => 'Product 1',        'price' => 100,    ],    'product2' => [        'name' => 'Product 2',        'price' => 200,    ],];echo $products['product1']['name']; // 输出: Product 1

class Student {    public $id;    public $name;    public function __construct($id, $name) {        $this->id = $id;        $this->name = $name;    }    public function printInfo() {        echo "ID: $this->id, Name: $this->name";    }}$student = new Student(1, 'John');$student->printInfo(); // 输出: ID: 1, Name: John