Question

Hi i am using the following code to check whether the username and password is correct or not along with the php code.

The problem is that it always gives incorrect username or password even if i give the correct details.

String response = null;
try {
response = CustomHttpClient.executeHttpPost("http://192.168.3.27/abc/check.php", postParameters);  //Enetr Your remote PHP,ASP, Servlet file link
String res=response.toString();
// res = res.trim();
res= res.replaceAll("\\s+","");
//error.setText(res);
error.setText(res);
if(res.equals("1")){
    Intent myIntent = new Intent(LoginActivity.this, HomeActivity.class);           
startActivity(myIntent);

}
else
error.setText("Sorry!! Incorrect Username or Password");

This is my php code.

<?php
$un=$_POST['username'];
$pw=$_POST['password'];
//connect to the db
$user = ‘root’;
$pswd = ‘root’;
$db = ‘mylogin’;
$conn = mysql_connect(‘localhost’, $user, $pswd);
mysql_select_db($db, $conn);
//run the query to search for the username and password the match
$query = “SELECT * FROM userpass WHERE login_id = ‘$un’ AND login_pass = ‘$pw’”;
$result = mysql_query($query) or die(“Unable to verify user because : ” . mysql_error());
//this is where the actual verification happens
if(mysql_num_rows($result) > 0)

echo 1;  // for correct login response
else
echo 0; // for incorrect login response
?>

Answer 1

to post values try like this

nameValuePairs.add(new BasicNameValuePair("username",_username));
nameValuePairs.add(new BasicNameValuePair("password",_pass));
try
{
   HttpClient httpclient = new DefaultHttpClient();
   HttpPost httppost = new HttpPost("your url");
   httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
   HttpResponse response = httpclient.execute(httppost); 
   HttpEntity entity = response.getEntity();
   is = entity.getContent();
 }
 catch(Exception e)
 {
   e.printStackTrace();
 }