imageUpload.php

<?php
    $currentDir = getcwd();
    $uploadDirectory = "/uploads/studentImages/";
    $errors = []; // Store all foreseen and unforseen errors here

    $fileExtensions = ['jpeg','jpg','png']; // Get all the file extensions
if(isset($_POST['submitImage'])){
    $fileName = $_FILES['myfile']['name'];
    $fileSize = $_FILES['myfile']['size'];
    $fileTmpName  = $_FILES['myfile']['tmp_name'];
    $fileType = $_FILES['myfile']['type'];
    $fileExtension = strtolower(end(explode('.',$fileName)));

    $uploadPath = $currentDir . $uploadDirectory . basename($fileName); 
   // Add image name to the database
 
        if (! in_array($fileExtension,$fileExtensions)) {
            $errors[] = "This file extension is not allowed. Please upload a JPEG or PNG file";
        }
        if ($fileSize > 2000000) {
            $errors[] = "This file is more than 2MB. Sorry, it has to be less than or equal to 2MB";
        }
        
        if (empty($errors)) {
            
            $didUpload = move_uploaded_file($fileTmpName, $uploadPath);

            if ($didUpload) {
                echo "The file " . basename($fileName) . " has been uploaded";
                addImagetoDatabase($fileName,$row['email']);   
            } else {
                echo "An error occurred somewhere. Try again or contact the admin";
            }
        } else {
            foreach ($errors as $error) {
                echo $error . "These are the errors" . "\n";
            }
        }
}

?>