dealing with unknown number of vars

[SeenGee]

I am making a dynamic events listing for a club promoter, for each event there could be a different number of dj's. To acccomodate this i have one table in my DB for the common attributes, i.e. venue name, price, date etc. and i have created a seperate table to hold the event_id(primary key from the main events table) and the dj_name. I have an initial form that takes the common attributes(price etc.) and also asks how many dj's are playing. I pass this number to a for loop which creates the requisite number of input boxes for the dj_names in this way:

echo '
<form name="djForm" action="addEvent.php?mode=checkDJ" method="POST">
		<table width="80%" align="center" cellpadding="2" cellspacing="2">
		';
		$t = $dj_no;
			for($i=0; $i<=$t; $i++)
			{
				echo '
				<tr>
					<td align="right" class="basic">DJ Number '.$i.'</td>
					<td align="left">
						<input type="text" name="djnum'.$i.'" id="djnum'.$i.'">
					</td>
				</tr>
				';
			}
			echo '
			<tr>
				<td>&nbsp;</td>
				<td align="left"><input type="submit" name="submit" value="submit"
				</tr>
			</table>
			</form>

usually when i deal with forms i pass the vars to a further section of the script where i validate the data using a function. The problem is though how i can actually retrive the individual posted vars (which would normally just be $var = $_POST['var'])sent by djnum'.$i.' for each input to use in my validator function:

field_validator("price", $_POST["price"], "alphanumeric_space", 1, 255);

and for that matter then be able to insert them into my databse.

i would really appreciate any advice. Thanks.

[SeenGee]

would something like this work:?

	for($i=0; $i<=$dj_no; i++)
	{
	$dj_num.$i=$_POST['dj_num'.$i.''];
	}

[dnast]

I was thinking something more like:

$dj = array();

for($i=0; $i<=$dj_no; i++) {
   $dj[$i]=$_POST['dj_num'.$i.''];
}

As for storing in the database, a simple solution would be to use [man]implode/man and [man]explode/man, which would let you store all the names in one field.

[SeenGee]

$dj = array(); 

for($i=1; $i<=$dj_no; $i++) { 
   $dj[$i]=$_POST['djnum'.$i.'']; 
   //echo $dj[$i]; 
   $sql = "INSERT INTO `eventDJs`(`event_id`, `dj_name`)VALUES('$dj_no', '$dj[$i]')"; 
   $dosql = mysql_query($sql); 
} 

seems to do the job, thanks for the help.