Hi I am trying to make a form to provide option to user to upload a file on a server.Here is the code for my upload.php. It checks all the conditions etc.. . This code works fine on localhost , and file is uploaded successfully. But when I use this script online on my server, it gives me error. couldn't figure out what is error. What I think is error in move_upload_file, but it isn't returning any error. File permissions on upload folder are 755. if((!empty($_FILES['uploaded_file'])) && ($_FILES['uploaded_file']['error'] == 0)){ $ok = 0; $filename = basename($_FILES['uploaded_file']['name']); $ext = substr($filename, strrpos($filename, '.') + 1); if (($ext == "jpg" || "gif" || "png") && ($_FILES["uploaded_file"]["type"] == "image/jpeg" || "image/gif" || "image/png") && ($_FILES["uploaded_file"]["size"] < 2097152) ){ $newname = 'upload/'.$filename; if (!file_exists($newname)) { if ((move_uploaded_file($_FILES['uploaded_file']['tmp_name'],$newname))) { $ok = "1"; echo "It's done! The file has been saved as: ".$newname; } else { echo "Error: A problem occurred during file upload!"; //This one executes when ever i try to upload file on server. } } else { echo "Error: File ".$_FILES["uploaded_file"]["name"]." already exists"; } } else { echo "Error: Only .jpg images under 2MB are accepted for upload"; } } else { echo "Error: No file uploaded"; } Thanks Bilal Farooq Ahmad