I have a bunch of passwords and usernames stored in a txt file and i need to check for matches. I know this is not a safe method but its for leaning purposes.

This code writes the usernames and passwords to a txt file

```
  if(isset($_POST['register'])) //  
   {
    $user  = $_POST['username'];
    $password=$_POST['password'].PHP_EOL;
    $fh = fopen("file.txt","a+");
    fwrite($fh,$user." ".$password); //write to txtfile

    fclose($fh);
 }

```

Here's the code im having trouble with. 

Username and Passwords are stored like this in results

```
      username1 passwords1 username2 password2 etc. 

```

So I need to check if result[0] = userinput AND if it exists check if result[1] = passwordInput and so on.

```
   if(isset($_POST['Logg']))
   {
   //$_SESSION['username']=$user; 
   //$_SESSION['password']=$password;

    $file = file_get_contents("file.txt"); // Returns a string

    $result = explode(" ",$file);
    $boolC= false;

    for($i=0; $i< count($result); $i++)
    {
   if($result[$i] === $user)
   {
    $boolC=true;
    $i =$i+1; 
    if($boolC === true)
    {
        if($result[$i]===$password)
        {
            echo 'Password and Username Correct';
        }
    }

   }
     }

  }

```