Radio Buttons to Text file

Anon

Greeting dudes ! I`m a fresh user of PHP and need some technical assistance from you folks.

I`m creating a survey form(using radio buttons) and it looks like this :-

Q1) How do you register for the hostel ?
<input type="radio" name="reg_method" value="phone"> By Phone
<INPUT type="radio" name="reg_method" value="mail"> By E-Mail
<INPUT type="radio" name="reg_method" value="office" checked> Walk-In to office

Q2)Do the authorities respond to your complaint immediately?
<INPUT type="radio" name="responds" value="yes"> Yes
<INPUT type="radio" name="responds" value="no" checked> No

I would like to store each entry into a text file and view them later.Hence, I would know the unique 'VALUE' for a particular 'NAME'(for both the Q`s) So, the output in my textfile should look something like

I`m trying to open a file and then write to it for instance :-

$fp = fopen("$DOCUMENT_ROOT/.../software/survey.txt", "w");

BUT, I don`t really know how to store the unique values for those radio buttons into my file.

Please help , dudes !

Anon

here is the code

<?php
$date=date("m/d/Y");
$file="temp.txt";
chdir(".");//Give your directory Path
$file2=fopen("$file", 'w');
fwrite($file2,"$date $reg_method $responds\n");
?>

enjoy
Tabish