iPhone and MySQL - iphone

Question

First I need to say that I am new to iPhone development, so please I need you to be specific!
I'm developing an application for School scientific project,the question is: How can I insert data into a mysql table from UITextFields on the iPhone?
On my application I have 3 UITextFields, so I need to insert those UITextFields values into the mysql table. It doesn't matter the way you know to do that, I'm in a hurry and I just wanna to put it to work.
1-I working with this PHP code
<?php
if (isset ($_GET["matricula"]))
$matricula = $_GET["matricula"];
else
$matricula = "ELO";
$sql="INSERT INTO chatitems (user, message, matricula) VALUES ('$_GET[user]','$_GET[messages]','$_GET[matricula]')";
$con = mysql_connect($DB_HostName,$DB_User,$DB_Pass) or die(mysql_error());
mysql_select_db($DB_Name,$con) or die(mysql_error());
//$sql = "insert into $DB_Table (matricula) values('$matricula');";
$res = mysql_query($sql,$con) or die(mysql_error());
mysql_close($con);
if ($res) {
echo "success";
}else{
echo "faild";
}// end else
?>
And I insert this CODE on my application(Xcode 4.1)
2
- (IBAction)insert:(id)sender
{
// create string contains url address for php file, the file name is phpFile.php, it receives parameter :name
NSString *strURL = [NSString stringWithFormat:#"http://localhost:8888/phpFile.php?name=%#",txtName.text];
//NSString *strURL = [NSString stringWithFormat:#"http://localhost:8888/phpFile.php?name=%#",txtMatricula.text];
// to execute php code
NSData *dataURL = [NSData dataWithContentsOfURL:[NSURL URLWithString:strURL]];
// to receive the returend value
NSString *strResult = [[[NSString alloc] initWithData:dataURL encoding:NSUTF8StringEncoding]autorelease];
NSLog(#"%#", strResult);
NSString *cont11 = [NSString stringWithFormat:#"http://localhost:8888/UEUO/insertMT.php?name=%#",txtName.text];
NSString *cont21 = [NSString stringWithFormat:#"http://localhost:8888/UEUO/insertMT.php?matricula=%#",txtMatricula.text];
NSData *cont12 = [NSData dataWithContentsOfURL:[NSURL URLWithString:cont11]];
NSData *cont22 = [NSData dataWithContentsOfURL:[NSURL URLWithString:cont21]];
NSString *cont13 = [[[NSString alloc] initWithData:cont12 encoding:NSUTF8StringEncoding]autorelease];
NSLog(#"%#", cont13);
NSString *cont23 = [[[NSString alloc] initWithData:cont22 encoding:NSUTF8StringEncoding]autorelease];
NSLog(#"%#", cont23);
}
This code works fine for only one UItextField, I need three3.
Repenting: How can I insert the values of three UITextFields into a MySql table using PHP and C++?
Please anything is helpful, if you know how please help me or send me a tutorial or a piece of code!

Answer 1

Your PHP script is looking for 3 parameters passed from a single request.
Your iPhone code is sending 2 different requests with 1 parameter each.
Your iPhone code should be sending 1 request with 3 parameters set, as with this sort of request:
NSString *cont11 = [NSString stringWithFormat:#"http://localhost:8888/UEUO/insertMT.php?name=%#&matricula=%#&message=%#",txtName.text, txtMatricula.text, txtMessage.text];
[NSData dataWithContentsOfURL:[NSURL URLWithString:cont11]];
I should also point out that you haven't sanitized your inputs. That's really bad. Sanitize your inputs.