因此，在一开始，在加载send_sms.php之前，我将这个Json存储在一个数据库中：
{
"chats": {
"chat": [{
"id": "1",
"name": "Ethan Wilberforce",
"messages": {
"message": [{
"id": "1",
"name": "Ethan Wilberforce",
"text": "Hello how are you doing",
"time": "4:41"
}, {
"id": "2",
"name": "Qasim Iqbal",
"text": "Not bad. How about you?",
"time": "4:42"
}, {
"id": "3",
"name": "Ethan Wilberforce",
"text": "I'm not too bad myself.",
"time": "4:43"
}]
}
}, {
"id": "2",
"name": "Geoff Vahaaho",
"messages": {
"message": [{
"id": "1",
"name": "Geoff Vahaaho",
"text": "Hello how are you doing",
"time": "4:41"
}, {
"id": "2",
"name": "Qasim Iqbal",
"text": "Not bad. How about you?",
"time": "4:42"
}, {
"id": "3",
"name": "Geoff Vahaaho",
"text": "I'm not too bad myself.",
"time": "4:43"
}, {
"id": "4",
"name": "Qasim Iqbal",
"text": "Nice.",
"time": "4:43"
}]
}
}]
}
}
Json是完全有效的，没有错误。它存储了两个聊天信息。
现在，这里是改变Json:的PHP代码
$data = $user->data;
$parsed_data = json_decode($data);
...
for($i = 0, $size = sizeof($parsed_data->chats->chat); $i < $size; ++$i) {
if($parsed_data->chats->chat[$i]->name == $to) {
$found = true;
$parsed_data->chats->chat[$i]->messages->message[sizeof($parsed_data->chats->chat[$i]->messages->message)] = new stdClass;
$parsed_data->chats->chat[$i]->messages->message[sizeof($parsed_data->chats->chat[$i]->messages->message)]->id = sizeof($parsed_data->chats->chat[$i]->messages->message);
$parsed_data->chats->chat[$i]->messages->message[sizeof($parsed_data->chats->chat[$i]->messages->message)]->name = $user->name;
$parsed_data->chats->chat[$i]->messages->message[sizeof($parsed_data->chats->chat[$i]->messages->message)]->text = $message;
$parsed_data->chats->chat[$i]->messages->message[sizeof($parsed_data->chats->chat[$i]->messages->message)]->time = $time;
echo "done. ";
break;
}
}
我打算这样做的是，在聊天的"message"数组中添加另一个stdClass对象。所以我基本上就是这么做的，希望它能起作用。
现在，它可以工作了，但这是我们对其进行Json_encode后的新Json：
{
"chats": {
"chat": [{
"id": "1",
"name": "Ethan Wilberforce",
"messages": {
"message": [{
"id": "1",
"name": "Ethan Wilberforce",
"text": "Hello how are you doing",
"time": "4:41"
}, {
"id": "2",
"name": "Qasim Iqbal",
"text": "Not bad. How about you?",
"time": "4:42"
}, {
"id": "3",
"name": "Ethan Wilberforce",
"text": "I'm not too bad myself.",
"time": "4:43"
}, {}, {
"id": 4
}, {
"name": "Qasim Iqbal"
}, {
"text": "Hello i am testing"
}, {
"time": 1326066200
}]
}
}, {
"id": "2",
"name": "Geoff Vahaaho",
"messages": {
"message": [{
"id": "1",
"name": "Geoff Vahaaho",
"text": "Hello how are you doing",
"time": "4:41"
}, {
"id": "2",
"name": "Qasim Iqbal",
"text": "Not bad. How about you?",
"time": "4:42"
}, {
"id": "3",
"name": "Geoff Vahaaho",
"text": "I'm not too bad myself.",
"time": "4:43"
}, {
"id": "4",
"name": "Qasim Iqbal",
"text": "Nice.",
"time": "4:43"
}]
}
}]
}
}
您会注意到它确实是在"Ethan Wilberforce"聊天中添加的，但stdClass中的每个字符串都被转换为"message"数组中自己的数组项。我该如何解决这个问题？非常感谢。
您的问题是：
$parsed_data->chats->chat[$i]->messages->message[sizeof($parsed_data->chats->chat[$i]->messages->message)] = new stdClass;
$parsed_data->chats->chat[$i]->messages->message[sizeof($parsed_data->chats->chat[$i]->messages->message)]->id = sizeof($parsed_data->chats->chat[$i]->messages->message);
它基本上相当于：
$array[$last] = new stdClass();
$array[$last+1] = "id";
$array[$last+2] = "name";
您一直在追加新的数组/对象，因为您使用的sizeof(...)总是比前一行大一个。这不是最后一个索引，而是大小。即CCD_ 2。
无论如何，您应该做的不是使用对象，而是添加一个数组，并同时使用它的所有属性：
$parsed_data->chats->chat[$i]->messages->message[] = array(
"id" => ...,
"name" => ...,
"time" => ...,
);
当您将关联数组编码回JSON时，它也将成为一个普通的{...} JSON对象组。