如图：
为什么下面这句话没有输出任何东西？
echo json_encode($result);#输出结果
个人觉得可能是因为$data里面的数组元素为Client对象，在转为json的时候出问题了。但是我不知道是什么问题，怎么转换？或者有没有其他的转换方法？
class Result {
var $state;
var $data = array();
}完整代码：
$start = 0;
$end = 2;
$uid = 1;
$result = new Result();
$result_set = getClients($start, $end, $uid);
$data = array();
$count = 0;
while($row = mysql_fetch_array($result_set)) {
$client = new Client();
$client->cid = $row['id'];
$client->gender = $row['gender'];
$client->rank = $row['rank'];
$client->name = $row['name'];
$client->phoneNum = $row['phoneNum'];
$client->email = $row['email'];
$client->address = $row['address'];
$result->data[$count] = $client;
echo $result->data[$count]->cid." ";
echo $result->data[$count]->gender." ";
echo $result->data[$count]->rank." ";
echo $result->data[$count]->name." ";
echo $result->data[$count]->phoneNum." ";
echo $result->data[$count]->address."\n";
$count++;
}
if(count($data) > 0) {
$result->state = 0;
} else {
$result->state = 1;
}
echo json_encode($result);#输出结果
class Result {
var $state;
var $data = array();
}
输出结果：
---------- debug php ----------
Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in D:\WWW\wsd\trunk\src\server\api\db\init_db.php on line 10
Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in D:\WWW\wsd\trunk\src\server\api\db\init_db.php on line 10
3 0 经理 张小莉 18825044888 广东省广州市天河区
4 0 主管 吴美凤 18576430777 广东省深圳市南山区蛇口南海大道1079号
PHP Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in D:\WWW\wsd\trunk\src\server\api\db\init_db.php on line 10
PHP Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in D:\WWW\wsd\trunk\src\server\api\db\init_db.php on line 10
Output completed (0 sec consumed) - Normal Termination
应该有输出类似这种格式才对的：
{"state":1,
"data":[
{"cid":3,
"gender":0,
"rank":"经理"
"name":" 张小莉"
"phoneNum":"18825044888 "
"address":"广东省广州市天河区"},
{"cid":4,
"gender":0,
"rank":"主管"
"name":" 吴美凤"
"phoneNum":"18576430777 "
"address":" 广东省深圳市南山区蛇口南海大道1079号"}
]
}请问这是什么问题呢？怎么解决？谢谢！
------解决思路----------------------
print_r($result);
能看到什么？
------解决思路----------------------
Object of class Result could not be converted to string 对象不能被转换为字符串
既如此，当然也不能 json 了
看看你的 Client 类定义
------解决思路----------------------
可能没有值吧