我试图在一个PHP中合并一些mySQL查询,然后将它们全部推送到一个JSON对象中。
所以,我从第一个查询开始......就像这样:
$data=[];
$response = $stmt->fetchAll(PDO::FETCH_ASSOC);
$final_count = count($response);
$data['count'] = $final_count;
如果我那么echo json_encode($data);
我得到一个格式很好的对象,如:{"count":61}
然后我有第二个查询,我将结果放在一个循环中,如下所示:
$response = $stmt->fetchAll(PDO::FETCH_ASSOC);
$items = array();
foreach ($response as &$value) {
$items[] = $value['date_added'];
}
echo json_encode($items);
我得到了很好的日期:
["2017-06-24 00:08:58","2017-06-26 15:01:48","2017-06-27 15:01:48","2017-06-28 23:19:41","2017-06-29 01:38:07","2017-06-30 00:08:58"]
问题是,如何将这一切重新组合在一起:
{
"count": 61,
"dates": [
"2017-06-24 00:08:58",
"2017-06-26 15:01:48",
"2017-06-27 15:01:48",
"2017-06-28 23:19:41",
"2017-06-29 01:38:07",
"2017-06-30 00:08:58"
]
}
答案 0 :(得分:4)
2017-06-30 17:38:37.124333+0200 XXXXX[83954:2132661] [LayoutConstraints] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want.
Try this:
(1) look at each constraint and try to figure out which you don't expect;
(2) find the code that added the unwanted constraint or constraints and fix it.
(
"<NSLayoutConstraint:0x61000028b680 H:|-(30)-[UIView:0x7f8dab565720] (active, names: '|':UIView:0x7f8dab566620 )>",
"<NSLayoutConstraint:0x61000028b6d0 UIView:0x7f8dab565720.trailing == UIView:0x7f8dab566620.trailing - 30 (active)>",
"<NSLayoutConstraint:0x61000028b4a0 H:|-(0)-[UIStackView:0x7f8dab569320] (active, names: '|': XXXXX.MultipleBarGraphsView:0x7f8dab561190'What are you doing' )>",
"<NSLayoutConstraint:0x61000028b3b0 UIStackView:0x7f8dab569320.trailing == XXXXX.MultipleBarGraphsView:0x7f8dab561190'Hur ofta svarar du r\U00e4tt?'.trailing (active)>",
"<NSLayoutConstraint:0x61000028b900 '_UITemporaryLayoutWidth' XXXXX.MultipleBarGraphsView:0x7f8dab561190'Hur ofta svarar du r\U00e4tt?'.width == 0 (active)>",
"<NSLayoutConstraint:0x61000028af00 'UISV-canvas-connection' UIStackView:0x7f8dab569320.leading == UIView:0x7f8dab566620.leading (active)>",
"<NSLayoutConstraint:0x61000028bbd0 'UISV-canvas-connection' H:[UIView:0x7f8dab566620]-(0)-| (active, names: '|':UIStackView:0x7f8dab569320 )>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x61000028b6d0 UIView:0x7f8dab565720.trailing == UIView:0x7f8dab566620.trailing - 30 (active)>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
答案 1 :(得分:4)
您可以使用
$myData['count'] = $final_count;
$myData['dates'] = $items
echo json_encode($myData);
答案 2 :(得分:2)
当然,您可以使用所有收集数据的array_merge。
或者:
$data=[];
// get $final_count
$data['count'] = $final_count;
// ... do some more stuff
// load items from db
$data['dates'] = $items;
echo json_encode($data);