var_dump() with mail()

I want to test out some code (an array) on a webpage but I don't want it displaying all the data on the web page.

Is there an easy function like var_dump() which i can use with the function mail() which would display the whole $_SESSION array?

 

$array = print_r($_SESSION, true);
mail('you@example.com', 'Session array', $array);

PHP:

 

Thanks Nico!