PHP contest Logical
<p>In one of my web application in php there is a contest section . It contains a multiple choice 10 questions , Each has 4 options . </p>

<p>After user filling the form I am saving the answer as comma separated values in a db . like follows:</p>

<pre><code>user   |    answer
-------------------------------------
112    |  1,7,8,9,8,5,2,3,6,7,9,6
</code></pre>

<p>I got a answer key same as the use's filled answer key ..</p>

<p>What is the best logical method for evaluate the users input and find out the highest scored user?</p>
