i am sending 5 different data across to a php file through POST method. the data is all integers. i want to add up all these integer values to produce a sum. \[code\] $.post( "user_submit.php", {score: $('#ques'+qn).find('input[name=vote]:checked').val() }, function(data){ $("#ques"+qn).hide(); ++qn; $("#ques"+qn).show(); }); });\[/code\]in the php file:\[code\]$score = $_POST['score'];$total = $total + $score;echo $total;\[/code\]it is not adding up the values. what am i doing wrong?