Exam Result System With XML and PHP?

I saw so many informations about XML & PHP coding. But I can't found I want. I searched on so many coding forums about XML & PHP but i didn't find any information for i want.

I think, stackoverflow.com can help me :) Anyway,

I want to try to creating STUDENT EXAM RESULT SYSTEM with XML and PHP.

And i just want to help from you for creating to STUDENT EXAM RESULT SYSTEM.

I know, so many sharing on forums about xml and php but i will explain now how i want my project :)

I hope, you'll get help me please :)

So we'll get start with an example :

XML DOCUMENT

<?xml version="1.0" encoding="UTF-8"?>
<users>
<user>
<schoolnumber>1</schoolnumber>
<Name_Surname>Adam Williams</Name_Surname>
<Date_of_Exam>2014/21/10</Date_of_Exam>
<Result>70</Result>
<Foreign_Lang>English</Foreign_Lang>
</user>

<user>
<schoolnumber>2</schoolnumber>
<Name_Surname>Mark Tuts</Name_Surname>
<Date_of_Exam>2014/21/10</Date_of_Exam>
<Result>80</Result>
<Foreign_Lang>German</Foreign_Lang>
</user>


<user>
<schoolnumber>3</schoolnumber>
<Name_Surname>Steve Conney</Name_Surname>
<Date_of_Exam>2014/21/10</Date_of_Exam>
<Result>90</Result>
<Foreign_Lang>French</Foreign_Lang>
</user>


<user>
<schoolnumber>4</schoolnumber>
<Name_Surname>Eric Morris</Name_Surname>
<Date_of_Exam>2014/21/10</Date_of_Exam>
<Result>60</Result>
<Foreign_Lang>English</Foreign_Lang>
</user>

</users>

thats our XML File.

I create login form now but i think how i will create login form with php such as using a xml file as database.

so i want, student entry own schoolnumber to login form afterthat student can see own exam results.

i show you with an example now;

http://ift.tt/1rZSIw5