keerthi_3 0 Newbie Poster
                <?php
                        session_start();

                        if (!isset($_SESSION['id'])) {
                                header('location:login.php');

                        }

                ?>

                <?php
                    $nameErr = $emailErr = $usernameErr = $DateOfBirthErr = $departmentErr = $ageErr = $fileToUploadErr = $fileToUploadErrr = $fileToUploadErrrr = $fileToUploadErrrrr = $fileToUploadErrrrrr = "" ;
                    $name = $email = $username = $DateOfBirth = $department = $age = $fileToUpload = $filename = $file = "";

                    include_once 'connect.php';
                    $id    =  $_GET['id'];
                    $query = mysqli_query($mysqli,"select * from `users` where userid ='$id'");
                    $row   = mysqli_fetch_array($query);

                    //set a default variable to hold the original value if $_POST is not triggered
                    $name        = $row['name'];
                    $username    = $row['username'];
                    $email       = $row['email'];
                    $DateOfBirth = $row['Date_of_birth'];
                    $department  = $row['department'];
                    $age         = $row['age'];
                    $file        = $_FILES['filename']['name'];
                    echo "<img alt='image' style='width:180px;height:100px;' src='upload/".$row['filename']."'>" ;

                    // checking weather the form has been submitted before performing the update query
                    if (isset($_POST['update'])) {

                    //Name Section    
                    if (empty($_POST["name"])) {
                      $nameErr = "Name is required";
                    } else {
                      $name = $_POST["name"];
                      // check if name only contains letters and whitespace
                      if (!preg_match("/^[a-zA-Z ]*$/",$name)) {
                        $nameErr = "Only letters and white space allowed"; 
                      }
                    }

                    //E-mail Section
                    if (empty($_POST["email"])) {
                    $emailErr = "Email is required";
                    } else {
                    $email = $_POST["email"];
                    // check if e-mail address is well-formed
                    if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
                      $emailErr = "Invalid email format"; 
                    }
                    }

                    //Username Section
                    if (empty($_POST["username"])) {
                    $usernameErr = "Username is required";
                    } else {
                    $username = $_POST["username"];
                     // check if name only contains letters and whitespace
                    if (!preg_match("/^[a-zA-Z ]*$/",$username)) {
                      $usernameErr = "Only letters and white space allowed"; 
                    }
                    }

                    //D.O.B Section
                    if (empty($_POST["Date_of_birth"])) {
                    $DateOfBirthErr = "Date Of Birth is required";
                    } else {
                    $DateOfBirth = $_POST["Date_of_birth"];
                    }

                    //Department Section
                    if (empty($_POST["department"])) {
                    $departmentErr = "Department is required";
                    } else {
                    $department = $_POST["department"];
                    }

                    //Age Section
                    if (empty($_POST["age"])) {
                    $ageErr = "Age is required";
                    } else {
                    $age = $_POST["age"];
                    }

                    //UPLOAD FILE
                    $uploaddir = 'upload/';
                    $uploadfile = $uploaddir . basename($_FILES['fileToUpload']['name']);
                    $imageFileType = pathinfo($uploadfile,PATHINFO_EXTENSION);

                    if($_FILES['fileToUpload']['name'] != '')
                    {  
                        // Check the image is actaully image or not
                        $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
                        if($check == false) 
                        {
                            $fileToUploadErrrrr = "File is not an image.";

                        } 

                        // Check if file already exists
                        if (file_exists($uploadfile)) {
                            $fileToUploadErrrrrr = "Sorry, file already exists.";
                        }

                            if($imageFileType != "jpg" && $imageFileType != "png" ) 
                            {
                                    $fileToUploadErr = "Sorry, only JPG,PNG files are allowed.";
                            }

                            elseif($_FILES['fileToUpload']['size'] > 500000) 
                            {

                            $fileToUploadErrrr = "Sorry, your file is too large.";

                            }

                            else
                            {   
                                    if($filename != '')
                                    {
                                            $target = "upload/".$filename;
                                            unlink($target);
                                    }
                                    $uploaded = move_uploaded_file($_FILES['fileToUpload']['tmp_name'], $uploadfile);
                                    if ($uploaded) {
                                            $file = $_FILES['fileToUpload']['name'];
                                    }   
                                    else{
                                            $file = $filename;
                                    }
                            }
                    }

                    elseif($_FILES['fileToUpload']['name'] = " ")
                    {

                        $fileToUploadErrr = "Please Select an image!";

                    }

                    else {
                            $file = $filename;
                    }

                    if($nameErr == "" && $emailErr == "" && $usernameErr == "" && $DateOfBirthErr =="" && $departmentErr =="" && $ageErr =="" && $fileToUploadErr == "" && $fileToUploadErrr == "" && $fileToUploadErrrr == "" && $fileToUploadErrrrr == "" && $fileToUploadErrrrrr == "" )
                    { 
                    $check="SELECT * FROM users WHERE username = '$username' and userid !='$id'";
                    $rs = mysqli_query($mysqli,$check);
                    $da = mysqli_fetch_array($rs, MYSQLI_NUM);
                    if($da >0) {
                          echo "Username Already in Exists";
                    }

                    else
                    {
                          $sql = "update `users` set name='$name', username='$username', email='$email', Date_of_birth='$DateOfBirth', department='$department', age='$age' , filename='$file' where userid ='$id'" ;

                              if (mysqli_query($mysqli, $sql)) {
                              echo "Record updated successfully";
                              } else {
                              echo "Error updating record: " . mysqli_error(mysqli_query);
                              } 
                              mysqli_close($mysqli);
                    }
                    }
                }

                ?>

                <!DOCTYPE html>
                <html>
                <head>
                    <style>
                                    .error {
                                        color:red;
                                    }

                                    .button {
                                        background-color: #4CAF50;
                                        border: none;
                                        color: white;
                                        padding: 10px 25px;
                                        text-align: center;
                                        text-decoration: none;
                                        display: inline-block;
                                        font-size: 16px;
                                        margin: 4px 2px;
                                        cursor: pointer;
                                    }
                                    .div1 {
                                        background-color: #f2f2f2;
                                        margin-top: -19px;
                                        margin-bottom: -25px;
                                        margin-left: -19px; 
                                    }

                                    .copy {
                                        border-radius: 4px;
                                        padding: 6px 20px;
                                       border-style: ridge;
                                    }

                                    .copy1{
                                         border-radius: 4px;
                                         padding: 6px 28px;
                                         border-style: ridge;
                                    }

                                    .copy2{
                                         border-radius: 4px;
                                         padding: 4px 2px;

                                    }
                    </style>
                </head>
    <body>

            <div style="padding-left: 250px" class="div1">
            <h2 style="color:#009999">EDIT :</h2>

                <form method="POST" action="">
                    <input type="hidden" name="hidden_id" value="<?= $id ?>"/>
                    <label style="color:#0099ff">Name:</label><input class= "copy" style="margin-left: 52px" type="text" value="<?= $name ?>" name="name">
                    <span class="error"> <?php echo $nameErr;?></span>
                    <br><br>

                    <label style="color:#0099ff">Username:</label><input type="text" class= "copy" style="margin-left:26px" value="<?= $username ?>" name="username">
                    <span class="error"><?php echo $usernameErr;?></span>
                    <br><br>

                    <label style="color:#0099ff">E-mail:</label><input type="text" class= "copy" style="margin-left: 48px"  value="<?= $email ?>" name="email">
                    <span class="error"><?php echo $emailErr;?></span>
                    <br><br>

                    <label style="color:#0099ff">Date_of_birth: </label><input type="date" class= "copy1" value="<?= $DateOfBirth ?>" name="Date_of_birth">
                    <span class="error"> <?php echo $DateOfBirthErr;?></span>
                    <br><br>

                    <label style="color:#0099ff">Department:</label>
                        <select name="department"  class= "copy2" style="margin-left:14px" value="<?= $department ?>">
                            <option value="EE">Electrical & Electronics</option>
                            <option value="EC">Electronics & Communication</option>
                            <option value="ME">Mechanical</option>
                            <option value="CS">Computer Science</option>
                            <option value="CV">Civil</option>
                            <option value="IS">Information Science</option>
                        </select>
                    <span class="error"> <?php echo $departmentErr;?></span>
                    <br><br>

                    <label style="color:#0099ff">Age:</label><input type="text" class= "copy" style="margin-left:62px" value="<?= $age ?>" name="age">
                    <span class="error"> <?php echo $ageErr;?></span>
                    <br><br>

                    <label style="color:#0099ff">Select image : </label><input type="file" style="width:180px;height:100px;padding:10px;" name="filename" >
                    <span class="error"><br> <?php echo $fileToUploadErr; ?></span>
                    <span class="error"><br> <?php echo $fileToUploadErrr; ?></span>
                    <span class="error"><br> <?php echo $fileToUploadErrrr; ?></span>
                    <span class="error"><br> <?php echo $fileToUploadErrrrr; ?></span>
                    <span class="error"><br> <?php echo $fileToUploadErrrrrr; ?></span>

                    <input type="submit" class="button" name="update" value="Update"> 
                    <a href="welcome.php">Back</a>
                </form>

            </div>

    </body>
    </html>

I'm creating a simply php registration form. So far it was going good but now I have got stuck in one section. I'm trying to write a code so that the user when tries to update it should get update all the text are getting updated but when it comes to the image section it is not getting updated. Does anyone know what would cause this?