On the method of converting string into JSON array in thinkphp

This is part of the code:

$client = M ("client");
$data = $client->where (' user_id = '. $user _id)->select ();
if ($data = = False | | $data = = NULL)
{
    /* Query Error */
    $str = Array (
        ' Status ' = ' ERROR ',
        ' msg '    = ' query error ',
        ' content ' = ' null '
    );
    $this->ajaxreturn ($STR);

}
Else
{
    /* Query Successful */
    $str = Array (
        ' Status ' = ' success ',
        ' msg '    = ' query succeeded ',
        ' Content ' = $data
    );
    $this->ajaxreturn ($STR);
}

Note: PHP compare two strings try not to use = = to compare, there will be unexpected consequences, try to use strcmp to compare, when the result is 0 when the expression wants to wait.

Here are two kinds of results:

1, the existence of users:

{"Status": "Success", "MSG": "\u67e5\u8be2\u6210\u529f", "content": [{"client_id": "000003", "Client_name": "\u5f90\ u5229\u5175 "," Client_phone ":" 18813752547 "," client_address ":" \u5e7f\u4e1c\u97f6\u5173\u7fc1\u6e90 "," Client_ Picture ":" Http:\/\/www.baidu.com "," user_id ":" 18813752547 "},{" client_id ":" 000002 "," Client_name ":" \u5f90\u5229\ u5175 "," Client_phone ":" 18813752547 "," client_address ":" \u5e7f\u4e1c\u97f6\u5173\u7fc1\u6e90 "," Client_picture ":" Http:\/\/www.baidu.com "," user_id ":" 18813752547 "},{" client_id ":" 000001 "," Client_name ":" \u5f90\u5229\u5175 "," Client_phone ":" 18813752547 "," client_address ":" \u5e7f\u4e1c\u97f6\u5173\u7fc1\u6e90 "," client_picture ":" Http:\/\ /www.baidu.com "," user_id ":" 18813752547 "},{" client_id ":" 000000 "," Client_name ":" \u5f90\u5229\u5175 "," Client_ Phone ":" 18813752547 "," client_address ":" \u5e7f\u4e1c\u97f6\u5173\u7fc1\u6e90 "," client_picture ":" http:\/\/ Www.baidu.com "," user_id ":" 18813752547 "},{" client_id ":" 000004 "," Client_name ":" \u5f90\u5229\u5175 "," Client_phone ":" 18813752547 "," client_addresS ":" \u5e7f\u4e1c\u97f6\u5173\u7fc1\u6e90 "," client_picture ":" Http:\/\/www.baidu.com "," user_id ":" 18813752547 "},{ "client_id": "000005", "Client_name": "\u5f90\u5229\u5175", "Client_phone": "18813752547", "client_address": "\u5e7f\ U4e1c\u97f6\u5173\u7fc1\u6e90 "," client_picture ":" Http:\/\/www.baidu.com "," user_id ":" 18813752547 "}]}

2, does not exist the user's:

{"Status": "Error", "MSG": "\u67e5\u8be2\u9519\u8bef", "content": "Null"}

I believe we all care about a problem: How does the Android client parse this JSON format? Let me answer for you:

Assuming that the Android client will save the content read from the server in Buider, then:

Jsonobject Jsonobject1 = new Jsonobject (builder.tostring ()). Getjsonobject ("status");

Jsonobject jsonobject2 = new Jsonobject (builder.tostring ()). Getjsonobject ("msg");

Jsonobject jsonobject3 = new Jsonobject (builder.tostring ()). Getjsonobject ("content");

String client_id = jsonobject3.getstring ("client_id");

String client_name = jsonobject3.getstring ("Client_name");

............

One analogy.

For other formats JSON parsing, self-search online method.

Please refer to this: http://www.cnblogs.com/cpcpc/archive/2011/07/22/2122989.html

On the method of converting string into JSON array in thinkphp