form submit problem

[hosam]

well I have this form:


<form name="enter" action="hand.php" method="post" dir="rtl" accept-charset="utf-8">';
echo '<p align="right" id="lable">request number:</p><br/>
<span id="request_number"></span><br/>
<p align="center" id="lable">send to:</p>
<select id="userone">';
$data = mysql_query("SELECT `id`,`firstname`,`lastname` FROM `users`");
while($row = mysql_fetch_assoc($data)) {
echo '<option value="'.$row['id'].'">'.$row['firstname'].' '.$row['lastname'].'</option>';}
echo '</select><br/>
<p align="center" id="lable"> copy to:</p>
<select id="usermulti" multiple="multiple">';
$data = mysql_query("SELECT `id`,`firstname`,`lastname` FROM `users`");
while($row = mysql_fetch_assoc($data)) {
echo '<option value="'.$row['id'].'">'.$row['firstname'].' '.$row['lastname'].'</option>';}
echo '</select><br/><br/>
<p align="center" id="lable">need: </p>
<input type="text" class="input" size="100" /><br/><br/>
<p align="right" id="lable">type:</p>
<div id="radio">
<input type="radio" id="radio1" name="send_type1" /><label for="radio1">problem1</label>
<input type="radio" id="radio2" name="send_type2" /><label for="radio2">problem2</label>
<input type="radio" id="radio3" name="send_type3" /><label for="radio3">problem3</label>
<input type="radio" id="radio4" name="send_type4" /><label for="radio4">problem4</label>
<input type="radio" id="radio5" name="send_type5" /><label for="radio5">problem5</label>
<input type="radio" id="radio6" name="send_type6" /><label for="radio6">problem6</label>
<input type="radio" id="radio7" name="others" /><label for="radio7">other:
<input type="text" name="others"/></label>
</div><Br/>
<p align="right" id="lable">explian:</p>
<textarea id="text" name="content" style="width:75%" class="tinymce"></textarea>
<br/>
<div id="radios">
<input type="radio" id="radio8" name="important" /><label for="radio8">important</label>
<input type="radio" id="radio9" name="important0" /><label for="radio9">not important</label></div><br/>

<input class="realupload" name="attachfile" type="file" id="realupload" value="post file" dir="rtl" title="post" />
</div><br/>
<input id="submit" name="submit" type="submit" value="send" />
</div>

</form>

and I want to use all of these data to post them at my database, what I face is that my database has col called number of request "number" which should take the number from this form exactly at "request_number" but how can I make it generate the number as unique from this part request_number?
also how to to submit only one radio for name="radio" and name="radios"?
my database table look like this:
id ( PRIMARY - AUTO_INCREMENT)
number (unique)
creat_date
read_date
send_type
type
others
title
content
attachment
user_id_m
user_id_req
user_id_ans
user_id_res
user_id_dec
user_id_dr
read
closed
closed_date
important

hope to get help with it, cause I have no idea except submit part of form..

[hosam]

I've solve it sorry, but it was cause radio make array so when I want to use these data I have to get value from array then insert it at database, so I use foreach to get selected elements inside radio and for the check boxes I used implode so everything working now sorry again if I ask for something seems easy but I didn't notice this part.