Objective C get JSON from PHP

Question

I'm making some app, where the app call PHP to pass the JSON file.

In my PHP code I have a result of JSON like this {"files":[{"name":"sharing-config.txt","date":"28-11-2014-11-59-59"},{"name":"2.jpg","date":"28-11-2014-14-25-35"}]}

Now I want call the JSON result to my objc function and return it as NSArray, is anybody can help me?

Many thank for your help :)

Sorry for my bad English.

UPDATE

Bellow is my PHP Code

$directory  = '../download/sponsors';

$arrayFiles     = array();

if ($handle = opendir($directory)) {


$i = 1 ;

while (false !== ($entry = readdir($handle))) {

    if($entry != "." && $entry != ".."){

        if (file_exists($directory  . "/" .$entry)) {

            $fileList       = array("name" => $entry, "date" => date ("d-m-Y-H-i-s", filemtime($directory . "/" .$entry)));
            $arrayFiles[]   = $fileList;

        }

    }
}

closedir($handle);
}


$obj = new stdClass();
$obj->files = $arrayFiles;

echo json_encode($obj);

My ObjC code

-(void)getPHPdata {
NSURLRequest *theRequest=[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://appserver.com/applications/appUpdate.php"]
                                          cachePolicy:NSURLRequestUseProtocolCachePolicy
                                      timeoutInterval:60.0];
NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
if (theConnection) {
    receivedData = [[NSMutableData data] retain];
    NSString *receivedDataString = [[NSString alloc] initWithData:receivedData encoding:NSUTF8StringEncoding];
    NSLog(@"This1: %@", receivedData);
    NSLog(@"This2: %@", receivedDataString);
} else {
    // Inform the user that the connection failed.
}
}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
[receivedData setLength:0];
NSLog(@"This3: %@", receivedData);
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
// Append the new data to receivedData.
// receivedData is an instance variable declared elsewhere.
[receivedData appendData:data];

filePath = [[NSString alloc] initWithData:receivedData encoding:NSUTF8StringEncoding]; // Get the return value from server

connectionSuccess = YES;


NSLog(@"This4: %@", [filePath stringByReplacingOccurrencesOfString:@"-" withString:@""]);
NSLog(@"This5: %@", receivedData);
}

Here is the LOG i got from xCode

2014-11-28 14:35:51.905 balisfinestvillas[17577:9635538] This4: {"files":[{"name":"sharingconfig.txt","date":"28112014115959"},{"name":"2.jpg","date":"28112014142535"}]}

Cheers :)

Anbu.Karthik · Accepted Answer · 2014-11-28T07:21:32.283

2

your JSon response is started with NSDictionary not the NSArray

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{

 NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:receivedData options: kNilOptions error:nil];

  NSMutableArray *finalresult=[[NSMutableArray alloc] init];  // allocating the array

    NSArray *responseArr=[jsonDict objectForKey@"files"];

    for (NSDictionary *tmp in responseArr) {

      NSMutableDictionary  *itemshowdetails=[[NSMutableDictionary alloc]init];

        [itemshowdetails setValue:[tmp objectForKey:@"name"] forKey:@"name"];
        [itemshowdetails setValue:[tmp objectForKey:@"date"] forKey:@"date"];

         [finalresult addObject:itemshowdetails];

    }

   }

retrieve

this method is used for where u want to access your data , customize your self

 for (int i=0;i<[finalresult count];i++)
{
 NSLog(@"%@",[[finalresult objectAtIndex:i] objectForKey:@"name"];
}

edited Nov 28 '14 at 07:21

answered Nov 28 '14 at 07:09

Anbu.Karthik

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`self. self.finalresult`? Not clear why you have used two times `self`. – Kampai Nov 28 '14 at 07:14
oh sry sry , just wait, I updated my answer – Anbu.Karthik Nov 28 '14 at 07:14
@Kampai -- y u given the download vote, can u explain me what i made the mistake – Anbu.Karthik Nov 28 '14 at 07:16
As per your repo - You have to explain what you did. You haven't explain where to put this for loop. Also you have not answer as per OP's need. – Kampai Nov 28 '14 at 07:18
@Anbu.Karthik please let me know, where I can pass my PHP url on your code, thanks. – ilovebali Nov 28 '14 at 07:21
your coding is fine , now I updated my answer ,plz add this in your code – Anbu.Karthik Nov 28 '14 at 07:22
@Kampai -- check that my updated answer – Anbu.Karthik Nov 28 '14 at 07:23
See OP use `didReceiveData ` method to get data from PHP web service. And you have use different method. – Kampai Nov 28 '14 at 07:23
Hi @Anbu.Karthik your code is work like a charm thanks :) – ilovebali Nov 28 '14 at 07:24
@Kampai -- do u used this concept in before, how many type we can access the response in request method – Anbu.Karthik Nov 28 '14 at 07:24
What my concern is - As you have enough reputation that you can explain in details that which can deliver enough understanding for OP. Any ways as per this issue OP was satisfied now, so vote from me too. – Kampai Nov 28 '14 at 07:28
@Kampai -- tanx kampi, onwards I follow this in every answer – Anbu.Karthik Nov 28 '14 at 07:30
@Anbu.Karthik Happy to hear this, explanation will gives you up vote too. Welcome. – Kampai Nov 28 '14 at 07:32

Objective C get JSON from PHP

1 Answers1