PHP 排序嵌套数组对象

Question

我有一个数组对象，里面有其他数组对象。一些数组是过时的，例如

[totals_grouped_by] => day [totals] => stdClass Object ( 
[2018-05-25] => stdClass Object ( [sales] => 0.00 [orders] => 0 [items] => 0 [tax] => 0.00 [shipping] => 0.00 [discount] => 0.00 [customers] => 0 ) 
[2018-05-26] => stdClass Object ( [sales] => 0.00 [orders] => 0 [items] => 0 [tax] => 0.00 [shipping] => 0.00 [discount] => 0.00 [customers] => 0 ) 
[2018-05-27] => stdClass Object ( [sales] => 0.00 [orders] => 0 [items] => 0 [tax] => 0.00 [shipping] => 0.00 [discount] => 0.00 [customers] => 0 )

totals_grouped_by是一个子元素，因此：

foreach($results as $val){
echo $val->totals_grouped_by;}

返回day

我如何返回每天的销售，我已经尝试了以下和其他一些可能性，但没有成功：

foreach($results as $val){
foreach($val->totals_grouped_by as $day){
echo $day->sales."<br>";}
}

这给了我Invalid argument supplied for foreach()

我想获得每个日期的销售，不确定如何访问它，因为它没有命名，而只是一个日期。希望这是有道理的。

Answer 1

关于您的数据结构缺少一些细节，我不确定您的数据可能会如何变化，因此我将根据发布的部分制造缺失的部分并提供一些解决方案。

代码：(演示(

$results = (object)[
(object)[
"totals_grouped_by" => "day",
"totals" => (object)[
"2018-05-25" => (object)[
"sales" => "0.00", "orders" => 0, "items" => 0, "tax" => "0.00", "shipping" => "0.00", "discount" => "0.00", "customers" => 0
],
"2018-05-26" => (object)[
"sales" => "0.00", "orders" => 0, "items" => 0, "tax" => "0.00", "shipping" => "0.00", "discount" => "0.00", "customers" => 0
],
"2018-05-27" => (object)[
"sales" => "0.00", "orders" => 0, "items" => 0, "tax" => "0.00", "shipping" => "0.00", "discount" => "0.00", "customers" => 0
]
]
]
];
foreach($results as $val) {
echo "Proof of mostly-accurate multi-dimensional array structure: " , $val->totals_grouped_by;
}
echo "n---n";
// Loop the first level, then loop the totals level
foreach ($results as $val) {
foreach ($val->totals as $date => $subarray) {
echo "Showing $date: ";
var_export($subarray);
echo "n";
}
}
// or assuming all levels are objects and you only want the one "totals" object that you posted:
echo "n---n";
foreach ($results->{0}->totals as $date => $subarray) {
echo "Showing $date: ";
var_export($subarray);
echo "n";
}

输出：

Proof of mostly-accurate multi-dimensional array structure: day
---
Showing 2018-05-25: stdClass::__set_state(array(
'sales' => '0.00',
'orders' => 0,
'items' => 0,
'tax' => '0.00',
'shipping' => '0.00',
'discount' => '0.00',
'customers' => 0,
))
Showing 2018-05-26: stdClass::__set_state(array(
'sales' => '0.00',
'orders' => 0,
'items' => 0,
'tax' => '0.00',
'shipping' => '0.00',
'discount' => '0.00',
'customers' => 0,
))
Showing 2018-05-27: stdClass::__set_state(array(
'sales' => '0.00',
'orders' => 0,
'items' => 0,
'tax' => '0.00',
'shipping' => '0.00',
'discount' => '0.00',
'customers' => 0,
))
---
Showing 2018-05-25: stdClass::__set_state(array(
'sales' => '0.00',
'orders' => 0,
'items' => 0,
'tax' => '0.00',
'shipping' => '0.00',
'discount' => '0.00',
'customers' => 0,
))
Showing 2018-05-26: stdClass::__set_state(array(
'sales' => '0.00',
'orders' => 0,
'items' => 0,
'tax' => '0.00',
'shipping' => '0.00',
'discount' => '0.00',
'customers' => 0,
))
Showing 2018-05-27: stdClass::__set_state(array(
'sales' => '0.00',
'orders' => 0,
'items' => 0,
'tax' => '0.00',
'shipping' => '0.00',
'discount' => '0.00',
'customers' => 0,
))