Parse Query String into KeyValue Pair using Objective-C

// The following snippet shows how to parse the Http QueryString and extract the parameters // (key/value pairs) as a dictionary object. // This is useful for working with iPhone/iPad applications that send or receive http requests. + (NSDictionary *)parseQueryString:(NSString *)query { NSMutableDictionary *dict = [[[NSMutableDictionary alloc] initWithCapacity:6] autorelease]; NSArray *pairs = [query componentsSeparatedByString:@"&"]; for (NSString *pair in pairs) { NSArray *elements = [pair componentsSeparatedByString:@"="]; NSString *key = [[elements objectAtIndex:0] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSString *val = [[elements objectAtIndex:1] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; [dict setObject:val forKey:key]; } return dict; }