PHP how to mark and essay quizes
<p>i am doing an online quiz using PHP, which contain essays and multiple questions. After finish answering, student will be graded immediately. for the multiple questions there are no problem,  but having problem at the essay part.</p>

<p>My problem is:</p>

<ol>
<li>how can i do auto check</li>
<li>and later i can edit the student answer to make a correction.</li>
</ol>

<p>thanks</p>
