在数组中获取价值

Question

我需要为这个阵列中的每个人取得价值。

Array ( 
    [0] => OrderItem Object ( 
        [description:protected] => 0987654321
        [unitPrice:protected] => 396.0000
        [quantity:protected] => 1.00
        [taxPercentage:protected] => 0.250000
        [sku:protected] => 212 
    )
)

喜欢，我想退出0987654321或396.0000 =）

我该怎么办？

我正在使用付款解决方案并尝试解决此问题。

此代码：$order = $details->getOrderItems();和print_r将写出我发布的这个数组。

变量$details = $detailsResponse->getPaymentDetails();

函数getOrderItems如下所示：

public function getOrderItems() {
    return $this->orderItems;
}

Answer 1

课程有吸气剂，所以你可以试试这个：

- (void)viewDidLoad
{
    [super viewDidLoad];

    //setup the array controller
    self.arrayController = [NSArrayController new];
    [self.arrayController addObject:@{@"namef": @"Test1", @"namel": @"a"}];
    [self.arrayController addObject:@{@"namef": @"Test2", @"namel": @"b"}];
    [self.arrayController addObject:@{@"namef": @"Test3", @"namel": @"c"}];
    [self.arrayController addObject:@{@"namef": @"Test4", @"namel": @"B"}];

    //setup the table view column bindings and sorting
    [[self.tableView tableColumnWithIdentifier:@"0"] bind:NSValueBinding toObject:self.arrayController withKeyPath:@"arrangedObjects.namef" options:nil];
    [[self.tableView tableColumnWithIdentifier:@"0"] setSortDescriptorPrototype:[NSSortDescriptor sortDescriptorWithKey:@"namef" ascending:YES selector:@selector(caseInsensitiveCompare:)]];

    [[self.tableView tableColumnWithIdentifier:@"1"] bind:NSValueBinding toObject:self.arrayController withKeyPath:@"arrangedObjects.namel" options:nil];
    [[self.tableView tableColumnWithIdentifier:@"1"] setSortDescriptorPrototype:[NSSortDescriptor sortDescriptorWithKey:@"namel" ascending:YES selector:@selector(caseInsensitiveCompare:)]];

    //Bind the array controller to the tableView
    [self.tableView bind:NSContentBinding toObject:self.arrayController withKeyPath:@"arrangedObjects" options:nil];
    [self.tableView bind:NSSelectionIndexesBinding toObject:self.arrayController withKeyPath:@"selectionIndexes" options:nil];

    //setup sorting
    [self.tableView setSortDescriptors:[NSArray arrayWithObject: [[NSSortDescriptor alloc] initWithKey:@"namel" ascending:YES selector:@selector(caseInsensitiveCompare:)]]];
    [self.arrayController bind:NSSortDescriptorsBinding toObject:self withKeyPath:@"sortDescriptors" options:nil];
    [self.arrayController setAutomaticallyRearrangesObjects:YES];
}

您可以在此处查看全班： https://github.com/PaysonAktiebolag/api-integration-php/blob/master/lib/orderitem.php

Answer 2

print_r()显示OrderItem对象的受保护属性。除非你创建一个公共函数来获取它们，否则你运气不好。

例如，如果您创建公共函数，如;

public function getProtected($varName) {
  if( property_exists($this, $varName) ) {
     return $this->$varName;
  }

  return NULL;
}

您将能够获得protected个变量。这是一个快速演示：https://eval.in/318390

您无法拨打$obj->description的原因是variable visibility。

如果您尝试访问protected变量，则会看到以下错误：Fatal error: Cannot access protected property OrderItem::$description