<?php

print_r($_FILES["upload"]["name"]);
if(preg_match("\Aimg[.*]\Z", $_FILES["upload"])) {
    echo "yes";
} else {
    echo "no";
}

/**
 * $target_dir = "upload/";
 * $target_file = $target_dir . basename($_FILES["upload"]["name"]);
 * $uploadOk = 1;
 * $imageFileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION));
 * // Check if image file is a actual image or fake image
 * if(isset($_POST["submit"])) {
 *     $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
 *     if($check !== false) {
 *         echo "File is an image - " . $check["mime"] . ".";
 *         $uploadOk = 1;
 *     } else {
 *         echo "File is not an image.";
 *         $uploadOk = 0;
 *     }
 * }
 */


?>
