Dynamic variable different for every Wordpress post: how to declare in loop? - variables

Question

I need a wordpress loop that for every post checks a meta numeric variable previously assigned to each of the taxonomies of the post and returns the sum of these meta variables.
To do so, I think I need a dynamic variable name for the total. I mean something like:
variablerelatedtopost = metataxonomy1 + metataxonomy2 + ... + metataxonomyn
echo variablerelatedtopost
How can I do that? Is it possible to generate a dynamic numeric variable via loop? and HOW can I refer to it in a general way, without adressing it with its name?
Thanks everyone! And sorry for possible English mistakes :P
EDIT: I just realized the code by Alex is not what I wanted. I need a variable which changes name at every post and which value is always = 0. Is there a solution?

Answer 1

can you not just add a counter to your loop like this?
//Total should start # 0 before the loop
$total = 0;
// The Query
$the_query = new WP_Query($args);
// The Loop
while ( $the_query->have_posts() ) : $the_query->the_post();
$amount = get_post_meta($post->ID, 'the_meta_data_field', true);
$total = $total + $amount;
endwhile;
//echo total
echo $total;

Answer 2

I found the solution to my problem: an array which increases its lenght at every cicle of the loop. I know it's simple but since I'm just a beginner it took me a while to think about it. I post the code here so maybe it can help someone (and if you find bugs or have improvements, please tell me)
//Before the loop, empty array
$totale = array();
// WP Loop
while ( $loop->have_posts() ) : $loop->the_post();
$totale[] = 0;
$indice = (count($totale)) - 1;
// $termvariable was previously set up as a term meta value
if( has_term( 'numberofterm', 'nameoftaxonomy' ) ) {
$totale[$indice] = $termvariable + $totale[$indice];
}