how to draw semi-transparent rectangle in php?

Question

Here is an example what I would like to do:

Here is the result:

<

Answer 1

You need to use http://php.net/manual/en/function.imagefilledrectangle.php, passing a color created with http://www.php.net/manual/en/function.imagecolorallocatealpha.php.

As you can see, the example for http://php.net/manual/en/function.imagefilledrectangle.php is pratically what to you want to do.