douzhang1299 2015-05-08 20:30
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PHP OOP - 类中的类数组[关闭]

I was wondering how you can define an array of objects within another object.

For example, let's say I have a class called "User", and another class called "Address".

A user can list an unlimited number of addresses. How do I do this?

My guess is that I need to declare an array of "Address" objects within the "User" class, but I am not sure how to do it.

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  • dou760663 2015-05-08 21:00
    关注

    Make a class, with a property that is an array, then add to the array:

    <?php
    
    class User
    {
        private $addresses = [];
    
        public function addAddress(Address $address)
        {
            $this->addresses[] = $address;
        }
    
        public function getAddresses()
        {
            return $this->addresses;
        }
    }
    
    class Address
    {
        private $street;
    
        public function __construct($street)
        {
            $this->street = $street;
            // ... etc
        }
    }
    
    $user = new User();
    $user->addAddress(new Address("Foo"));
    $user->addAddress(new Address("Bar"));
    
    var_dump($user->getAddresses());
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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