is there a way to resize an image after you have uploaded it using php? suppose i want to restrict the width and height of my images to 1000 and 800 respectively what code to i add to the following code snippet?
$tmp_file = $_FILES['file_upload']['tmp_name'];
$target_file = basename( $_FILES['file_upload']['name'] );
$upload_dir = IMAGE_DIR;
if ( move_uploaded_file( $tmp_file, IMAGE_DIR . "/" . $target_file ) ) {
$message = "File has been successfully uploaded.";
} else {
$error = $_FILES['file_upload']['error'];
$message = $upload_errors[$error];
}