CODEWITHSUNDEEP
cocoaencodingutf-8
filou
filou

Reputation: 1619

iOS5: UTF-8 encoding does not work at all

My application is able to send the input of several textfields to a PHP script on my server using the POST function which sends the message to my email. The problem is, some characters won't get 'translated'. For example: ü -> ü.

I have already checked my HTTP Header but it's still UTF-8.

I also use this code to convert the characters:

[textFieldName.text stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding]

NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversation:YES];

What am I doing wrong? Even the PHP file has this code:

function mail_utf8($to,$subject = '(No subject)',$message = '',$header = ''){
    $header_ = 'MIME-Version: 1.0' . "\r\n" . 'Content-type: text/plain; charset=UTF-8' . "\r\n";
    if(mail($to, '=?UTF-8?B?'.base64_encode($subject).'?=', $message, $header_ . $header)) return true;
    else return false;
  }

EDIT:

NSString *post = nil;
            post = [[NSString alloc] initWithFormat:@"vorname=%@&name=%@&plz=%@&ort=%@&email=%@&geburtsdatum=%@&eventdatum=%@",
                    [textFieldVorname.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding],
                    [textFieldName.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding],
                    [textFieldPLZ.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding],
                    [textFieldOrt.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding],
                    [textFieldEmail.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding],
                    [textFieldGeburtsdatum.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding],
                    [textFieldEventdatum.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
            NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
            NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
            NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
            [request setURL:[NSURL URLWithString:@"http://www.url.com/document-send.php"]];
            [request setHTTPMethod:@"POST"];
            [request setValue: postLength forHTTPHeaderField:@"Content-Length"];
            [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
            [request setHTTPBody:postData];
            [NSURLConnection connectionWithRequest:request delegate:self];

Upvotes: 0

Views: 1746

Answers (3)

filou
filou

Reputation: 1619

Okay, I found the error:

Like Peter Hosey said: the error was in decoding the utf-8 character set to ISO 8859-1 in php. Now this is the working code:

mail($email_to,$email_subject,utf8_decode($email_data),$email_header);

Thank you guys for helping me :)

Upvotes: 0

Rob Bajorek
Rob Bajorek

Reputation: 6560

I fixed a similar problem POSTing JSON data by explicitly adding charset=utf-8 to my Content-Type header. It may apply to your case, as well.

Try:

[request setValue:@"application/x-www-form-urlencoded;charset=utf-8" forHTTPHeaderField:@"Content-Type"];

Upvotes: 2

John Haager
John Haager

Reputation: 2115

The method stringByAddingPercentEscapesUsingEncoding returns a new NSString object. You need to catch the return value and use it in place of the raw value of the field in the post data.

NSString *encodedText = [ textField.text stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding ] ;
NSData *postData = [ encodedText dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES ] ;

Upvotes: 1

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