<?php
  function mute(){
  	echo "<!--";
  }

  function unmute() {
  	echo "-->";
  }
?>

<?php
  $file = fopen('pass.csv', 'r');
  while (!feof($file)) {
  	$data[] = fgetcsv($file);

  }

  //echo (array_search('qwer', array($data)));
  $success = array_filter($data, 'filter_name_pass', ARRAY_FILTER_USE_BOTH);


  //print_r($data);
  fclose($file);
?>


<?php
  function filter_name_pass($val)
  {
  	return  $val[0] == $_POST['username'] &&
  			$val[1] == $_POST['password'];
  }
?>

<?php // Not Logged in
	if ($success) mute();
?>
<form method="POST", action="index.php">
	<label for="username">Username:</label>
	  <input type="text" name="username">

	<br/>

	<label for="password">Password:</label>
	  <input type="text" name="password">
	<br/>
	<input type="submit" name="submit">

</form>
<?php
	if ($success) unmute();
?>


<?php // Logged in
	if (!$success) mute();
?>
	<h1>Login sukses!</h1>
	<h2>Halo, <? echo $_POST['username']; ?></h2>
<?php
	if (!$success) unmute();
?>