<?php
	require_once('../../utils/config.php');
	require_once('../../utils/db.php');
	require_once('../../utils/strings.php');
	
	$connection = connect();
 
  $cid = intval($_GET["cid"]);
  $date = mysqli_real_escape_string($connection, $_GET["date"]);
  
  $returnValue = array();
 
  $querystr = "SELECT * FROM li_enroll, li_students
               WHERE li_enroll.sid = li_students.sid
                 AND li_enroll.cid = $cid
                 AND li_enroll.begin < '{$date}'
                 AND li_enroll.end > '{$date}'"; 


  $result = mysqli_query($connection, $querystr);
  if($result->num_rows !== 0) {
  	while ($row = mysqli_fetch_object($result)) {
      $student = (object) [
        'sid' => $row->sid,
        'firstname' => $row->firstname,
        'lastname' => $row->lastname,
      ];    
      
      array_push($returnValue, $student);
    }
  }

 	mysqli_free_result($result);

  echo json_encode($returnValue);
?>