$pic=($_FILES['photo']['name']);

$resizeObj = new resize('images/sample_name.jpg');

$resizeObj = new resize('images/'.$pic);

$resizeObj = new resize("images/$pic");

$resizeObj = new resize('images/'.$pic);

$resizeObj = new resize("images/$pic");

$resizeObj = new resize('images/'. $pic);

$resizeObj = new resize(sprintf('images/%s', $pic));