Empty values for the request.

Code:

[richiesta setHTTPBody:[[NSString stringWithFormat:@"macaddress=%@&user=%@&titolo=%@&trama=%@",appDelegate.macaddress,appDelegate.nomeutente,self.titolo.text,self.trama.text] dataUsingEncoding:NSASCIIStringEncoding]];

NSLog(@"Mac: %@ \n\n Titolo: %@ \n\n Trama: %@",appDelegate.macaddress,self.titolo.text,self.trama.text);

Why the first line sends emty values to the php script, while the second prints them correctly?

I've tied to put strings in the request to the php script and they arrives, so the code for the request is correct.
I do not understand...

 

I'm using POST

Code:

NSMutableURLRequest *richiesta = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.sito.it/iosphp/trame.php"]
														 cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
[richiesta setHTTPMethod:@"POST"];

as said if I use something like this the request works:

Code:

NSString *mac = @"2323232";
NSString *user = @"user";
NSString *tit = @"titolo";
NSString *tra = @"trama";
...
[richiesta setHTTPBody:[[NSString stringWithFormat:@"macaddress=%@&user=%@&titolo=%@&trama=%@",mac,user,tit,tra] dataUsingEncoding:NSASCIIStringEncoding]];

 

It looks that the problem is caused by the presence of some special character such as '
Those characters are present inside the database text but not shown on the iPad display and they cause the malfunction, if there are no ' in the text, the request works correctly.
I do I have to manage those characters?

 

Solved the problem with ´ that it is different from ', I've changed them inside the database.
Now the problem are the characters like è à ù ì ò é

Using NSUTF8StringEncoding the request is sent to the script and it reads the parameters, but those characters are read not correctly.

How to correctly manage those characters?

 

I see, but shouldn't that be done by dataUsingEncoding:NSUTF8StringEncoding used for the NSMutableURLRequest object?

There are also other characters which need to be percent-encoded, such as ^ or | and they are correctly sent doing nothing.

 

Before to pass the strings to setHTTPBody
I've parsed them with
stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding

same result.

 

This is the code

Code:

- (void)editTramaDone:(id)sender {
	[trama resignFirstResponder];
	
	TabularRecInfoAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
	
	NSString *parsedUser = [appDelegate.nomeutente stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
	NSString *parsedTitolo = [self.titolo.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
	NSString *parsedTrama = [self.trama.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
	
	NSMutableURLRequest *richiesta = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.sito.it/iosphp/trame.php"]
															 cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
	[richiesta setHTTPMethod:@"POST"];
	[richiesta setHTTPBody:[[NSString stringWithFormat:@"user=%@&mac=%@&titolo=%@&trama=%@", parsedUser, appDelegate.macaddress, parsedTitolo, parsedTrama] dataUsingEncoding:NSUTF8StringEncoding]];

	NSURLResponse *response;
	NSError *error;
	NSData *dati = [NSURLConnection sendSynchronousRequest:richiesta returningResponse:&response error:&error];
	
	NSString *esitoModifica = [[[NSString alloc] initWithData:dati encoding:NSASCIIStringEncoding] autorelease];
	NSLog(@"\n%@",esitoModifica);
	self.navigationItem.rightBarButtonItem = nil;
}

 

Problem solved, in the code I sent the request using UTF8 while I was reading the response with ASCII encoding, so I thought that also the script where reading the parameters in a wrong way xD

Thanks for your help.