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| <?php
session_start();
$server = "localhost";
$username="root";
$password="";
$dbname="qrcodedb";
$conn = new mysqli($server,$username,$password,$dbname);
if($conn->connect_error){
die("Connection failed" .$conn->connect_error);
}
if(isset($_POST['studentID'])){
$studentID =$_POST['studentID'];
$date = date('d/m/Y');
$time = date('H:i:s ');
$sql = "SELECT * FROM student WHERE STUDENTID = '$studentID'";
$query = $conn->query($sql);
if($query->num_rows < 1){
$_SESSION['error'] = 'Cannot find QRCode number '.$studentID;
}else{
$row = $query->fetch_assoc();
$id = $row['STUDENTID'];
$sql ="SELECT * FROM attendance WHERE STUDENTID='$id' AND LOGDATE='$date' AND STATUS='0'";
$query=$conn->query($sql);
if($query->num_rows>0){
$sql = "UPDATE attendance SET TIMEOUT='$time', STATUS='1' WHERE STUDENTID='$studentID' AND LOGDATE='$date'";
$query=$conn->query($sql);
$_SESSION['success'] = 'Successfuly Time Out: '.$row['FIRSTNAME'].' '.$row['LASTNAME'];
}else{
$sql = "INSERT INTO attendance(STUDENTID,TIMEIN,LOGDATE,STATUS) VALUES('$studentID','$time','$date','0')";
if($conn->query($sql) ===TRUE){
$_SESSION['success'] = 'Successfuly Time In: '.$row['FIRSTNAME'].' '.$row['LASTNAME'];
}else{
$_SESSION['error'] = $conn->error;
}
}
}
}else{
$_SESSION['error'] = 'Please scan your QR Code number';
}
header("location: index.php");
$conn->close();
?> |
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