Hi, guys, I want to post data to web server, like username and password, on the web server, I used PHP to echo yes or no, I attached all the code. Can anybody help me out, what is wrong with the code. Since it always says incorrect password or username. I tried to test the php code with username and password inside, it is working. So please help me. Thank you.

Header file

@interface kiksyloginViewController : UIViewController {
IBOutlet UITextField *usernameField;
IBOutlet UITextField *passwordField;
IBOutlet UIButton *loginButton;

}

@property (nonatomic, retain) UITextField *usernameField; @property (nonatomic, retain) UITextField *passwordField; @property (nonatomic, retain) UIButton *loginButton;

• (IBAction) login: (id) sender;

@end

Implementation file

#import "kiksyloginViewController.h"

@implementation kiksyloginViewController

@synthesize usernameField; @synthesize passwordField; @synthesize loginButton;

• (IBAction) login: (id) sender

{

NSString *post =[NSString stringWithFormat:@"username=%@&password=%@",usernameField.text, passwordField.text];

NSString *hostStr = @"http://localhost/userlogin.php";
hostStr = [hostStr stringByAppendingString:post];
NSData *dataURL =  [NSData dataWithContentsOfURL: [ NSURL URLWithString: hostStr ]];    
NSString *serverOutput = [[NSString alloc] initWithData:dataURL encoding: NSASCIIStringEncoding];







if([serverOutput isEqualToString:@"Yes"]){


    UIAlertView *alertsuccess = [[UIAlertView alloc] initWithTitle:@"Congrats" message:@"You are authorized "
                                                          delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

    [alertsuccess show];
    [alertsuccess release];


} else {
    UIAlertView *alertsuccess = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Username or Password Incorrect"
                                                          delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
    [alertsuccess show];
    [alertsuccess release];

}

}

• (void)didReceiveMemoryWarning { // Releases the view if it doesn’t have a superview. [super didReceiveMemoryWarning];

  // Release any cached data, images, etc that aren’t in use. }

• (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; }

• (void)dealloc { [super dealloc]; }

@end

PHP file

<?php 

//$Container = new Container ;

$u = $_GET['username']; $pw =$_GET['password']; $check = "select username, password from user where username='$u' and password='$pw'"; function myDbconn()

{ mysql_connect("localhost", "root","") or die(); mysql_select_db("test") or die (mysql_error()); }

myDbconn();

$login = mysql_query($check) or die (mysql_error()); //$run = DB()->select($check);

if (mysql_num_rows($login)==1){ //$row = DB()->fetch($run); //$row = DB()->fetch($login); $row = mysql_fetch_assoc($login); echo 'yes'; exit;
} else { echo 'No'; exit; }

?>