Question

in mysql db table

  varchar title(20) - db table column. 
  title: Banana™  - table row.      

in return.php (server)

 $get_query=$_GET['query'];

 $connect=mysql_connect("localhost","root","") or die("die");

mysql_select_db("testdb",$connect);

$query=mysql_query($get_query,$connect);

while($row = mysql_fetch_array($query ))
{
$list[]=$row;

 }

print json_encode($list);

mysql_free_result($query);

mysql_close($connect);

in ios (client)

NSString * szURL =[NSString stringWithFormat:@"http://localhost/return.php?query=%@",query]; 

NSURL *url = [NSURL URLWithString:[szURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding ]];

NSString *strData = [NSString stringWithContentsOfURL:url
                                             encoding:NSUTF8StringEncoding
                                                error:&error];

NSDictionary *rootItem = (NSDictionary *)[strData JSONValue];
NSArray * appLists= (NSArray *)rootItem;

NSMutableArray *resultArray =[[[NSMutableArray alloc]init] autorelease];

for(NSDictionary * oneApp in appLists)
{   
   NSString *appTitle=(NSString*)[oneApp objectForKey:@"title"];

 }

but appTitle is NULL;

I think , I need to covert character.

™ is problem.
How I get Banana™ by (NSString *)??

Answer 1

Maybe the problem is here:

NSDictionary *rootItem = (NSDictionary *)[strData JSONValue];
NSArray * appLists= (NSArray *)rootItem;

Is it an Array or a Dictionary? Check this out before iterate over appLists. A NSLog to [strData JSONValue]; can be really useful.