Proper syntax in PHP on form element

New to PHP-

If I have PHP getting a picture name from a form:

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

and I want to reference that field dynamically later in the file (sample_name.jpg):

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

What is the proper formating?

Using $resizeObj = new resize('images/'$pic''开发者_StackOverflow); gives me a syntax error.

Use

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

instead, and read this nice introduction to strings.

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

You may use

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

. means string concatenation

There are several options:

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

is the most common, but I personally don't like variables in strings, so you could go with:

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

Or even

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

you can use 2 ways

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

or

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