echo json 对象 $stdClass 对象数组

Question

echo "<pre>"; print_r($data); echo "</pre>";

给出以下输出：

$stdClass Object
(
    [cartName] => AngularStore
    [clearCart] => 
    [checkoutParameters] => stdClass Object
        (
        )

    [items] => Array
        (
            [0] => stdClass Object
                (
                    [sku] => 01
                    [name] => Product 1
                    [price] => 600
                    [quantity] => 1
                    [stock] => 5
                    [scheme] => Array
                        (
                            [0] => stdClass Object
                                (
                                    [name] => offerAB
                                    [desc] => Description on the scheme
                                    [no] => 3
                                    [$$hashKey] => 01O
                                    [checked] => 1
                                )

                            [1] => stdClass Object
                                (
                                    [name] => offerXY
                                    [desc] => Description on the scheme
                                    [no] => 5
                                    [$$hashKey] => 01P
                                )

                            [2] => stdClass Object
                                (
                                    [name] => OfferPQ
                                    [desc] => Description on the scheme
                                    [no] => 2
                                    [$$hashKey] => 01Q
                                    [checked] => 1
                                )

                            [3] => stdClass Object
                                (
                                    [name] => OfferLM
                                    [desc] => Description on the scheme
                                    [no] => 4
                                    [$$hashKey] => 01R
                                )

                        )

                    [$$hashKey] => 05V
                )

            [1] => stdClass Object
                (
                    [sku] => 02
                    [name] => Product 2
                    [price] => 500
                    [quantity] => 1
                    [stock] => 400
                    [scheme] => Array
                        (
                            [0] => stdClass Object
                                (
                                    [name] => offerAB
                                    [desc] => Description on the scheme
                                    [no] => 6
                                    [$$hashKey] => 01W
                                )

                            [1] => stdClass Object
                                (
                                    [name] => offerXY
                                    [desc] => Description on the scheme
                                    [no] => 7
                                    [$$hashKey] => 01X
                                )

                            [2] => stdClass Object
                                (
                                    [name] => OfferPQ
                                    [desc] => Description on the scheme
                                    [no] => 3
                                    [$$hashKey] => 01Y
                                )

                            [3] => stdClass Object
                                (
                                    [name] => OfferLM
                                    [desc] => Description on the scheme
                                    [no] => 8
                                    [$$hashKey] => 01Z
                                )

                        )

                    [$$hashKey] => 05W
                )

        )

    [qty] => 3
)

我想使用 foreach 循环打印 sku 、名称、价格的值

由于我是新手，所以我首先开始打印单个值

echo $data->items->arr[0]->sku;
Notice: Trying to get property of non-object  getting this error

但我想打印 foreach 中的值，请帮忙！

Answer 1

Items 是主对象的一个​​属性，它本身就是一个数组。这就是你所追求的：

foreach($data->items as $d) {
   echo $d->name, '<br />', $d->sku, '<br />', $d->price;
}

如果你想在没有循环的情况下访问其中一个元素，你需要提供数组索引，例如：

echo $data->items[0]->name

Answer 2

最简单的方法是将对象转换为数组

function array2object($array) {

    if (is_array($array)) {
        $obj = new StdClass();

        foreach ($array as $key => $val){
            $obj->$key = $val;
        }
    }
    else { $obj = $array; }

    return $obj;
}

function object2array($object) {
    if (is_object($object)) {
        foreach ($object as $key => $value) {
            $array[$key] = $value;
        }
    }
    else {
        $array = $object;
    }
    return $array;
}


// example:

$array = array('foo' => 'bar', 'one' => 'two', 'three' => 'four');

$obj = array2object($array);

print $obj->one; // output's "two"

$arr = object2array($obj);

print $arr['foo']; // output's bar

Answer 3

foreach($data['items'] as $item) {

   echo $item['sku'].PHP_EOL
   echo $item['name'].PHP_EOL
   echo $item['price'].PHP_EOL;

}