在PHP中解码多个JSON对象

我使用PHP套接字管理聊天应用程序中的数据，下面是一个示例JSON字符串，我希望从套接字读取：

{ "m_time" : "2015-04-07 11:37:35", "id" : "29", "msg" : "Hai there. This is a test message"}

但有时在套接字中读取多个连接的对象，如下所示：

{ "m_time" : "2015-04-07 11:37:35", "id" : "30", "msg" : "Hai there 1"}{ "m_time" : "2015-04-07 11:37:36", "id" : "31", "msg" : "Hai there 2"}{ "m_time" : "2015-04-07 11:37:37", "id" : "32", "msg" : "Hai there 3"}

无论是单个对象还是多个对象，我如何解码

用于套接字读取的PHP代码：

while(@socket_recv($changed_socket, $buf, READ_SIZE, 0) >= 1)
{
    if(!$buf) logResponse('Socket Read Failed for '. $changed_socket);

    $received_text = $buf; //unmask data
    $tst_msg = json_decode($received_text); //json decode 

    logResponse('Received Data: '. $received_text);
}
// logResponse() is used to write a log file log.html

---

试试这个。数组中不存在对象之间的逗号

<script type="text/javascript">
var json = [
{ "m_time" : "2015-04-07 11:37:35", "id" : "30", "msg" : "Hai there 1"},
{ "m_time" : "2015-04-07 11:37:36", "id" : "31", "msg" : "Hai there 2"},
{ "m_time" : "2015-04-07 11:37:37", "id" : "32", "msg" : "Hai there 3"}
];

$.each(json, function(index, item) {
console.log(item); // this console each string {  } in json array
});
</script>

var json=[
{“m_time”：“2015-04-07 11:37:35”，“id”：“30”，“msg”：“Hai there 1”}，
{“m_time”：“2015-04-07 11:37:36”，“id”：“31”，“msg”：“Hai there 2”}，
{“m_time”：“2015-04-07 11:37:37”，“id”：“32”，“msg”：“Hai there 3”}
];
$.each（json，函数（索引，项）{
console.log（item）；//此控制台包含json数组中的每个字符串{}
});

下面是php代码示例

<?php
$arr = array(
array(
"m_time" => "2015-04-07 11:37:35",
"id" => "30",
"msg" => "Hai there 1"
),
array(
"m_time" => "2015-04-07 11:37:35",
"id" => "30",
"msg" => "Hai there 1"
)
);

echo json_encode($arr);
?>

---

整理输入，在每个json字符串后添加逗号，发送方式如下：

{ "m_time" : "2015-04-07 11:37:35", "id" : "30", "msg" : "Hai there 1"},{ "m_time" : "2015-04-07 11:37:36", "id" : "31", "msg" : "Hai there 2"},{ "m_time" : "2015-04-07 11:37:37", "id" : "32", "msg" : "Hai there 3"},

php函数

function json_decode_multi($s, $assoc = false, $depth = 512, $options = 0) {
    if(substr($s, -1) == ',')
        $s = substr($s, 0, -1);
    return json_decode("[$s]", $assoc, $depth, $options);
}

var_dump(json_decode_multi('{ "m_time" : "2015-04-07 11:37:35", "id" : "30", "msg" : "Hai there 1"},{ "m_time" : "2015-04-07 11:37:36", "id" : "31", "msg" : "Hai there 2"},{ "m_time" : "2015-04-07 11:37:37", "id" : "32", "msg" : "Hai there 3"},'));

输出：

array(3) {
  [0] =>
  class stdClass#1 (3) {
    public $m_time =>
    string(19) "2015-04-07 11:37:35"
    public $id =>
    string(2) "30"
    public $msg =>
    string(11) "Hai there 1"
  }
  [1] =>
  class stdClass#2 (3) {
    public $m_time =>
    string(19) "2015-04-07 11:37:36"
    public $id =>
    string(2) "31"
    public $msg =>
    string(11) "Hai there 2"
  }
  [2] =>
  class stdClass#3 (3) {
    public $m_time =>
    string(19) "2015-04-07 11:37:37"
    public $id =>
    string(2) "32"
    public $msg =>
    string(11) "Hai there 3"
  }
}

---

您能给我们看一下您的套接字连接代码吗？对于多个对象，套接字没有返回有效的JSON字符串。如果您想使用json_decode，这个问题应该通过更改套接字代码（首选）或者通过处理您得到的输出来解决：您需要}{和[]之间的逗号在结果的开头和结尾。你可以在这里检查JSON的有效性：作者从未提到Javascript，他正在使用PHP代码。返回的结果必须有逗号。在他的示例中，逗号不存在。是的，我使用的是PHP。从套接字接收的字符串没有任何逗号分隔。从客户端看，单个jsons是发送的，但有时作为组合接收jsons@PlamenNikolov：客户端返回的结果是单一json，当我同时发送2个或更多json时，有时在php套接字中将其作为组合json读取。.可能的QDF-->$ASABLE=preg\u replace（“/\\\\\\\\\\\\{/”，“}，{，$instring）；它应该可以工作。但我认为您的协议设计不稳定。

@socket\u recv（$changed\u socket，$buf，READ\u SIZE，0）

如果满足max

READ\u SIZE

，则可以读取半个字符串（断开）。如果数据解码失败，您应该保留最后收到的数据，并读取更多数据以附加到其中，然后重试。