Need to put Category ID in array

[Swedie]

Hey

I have a bunch of categories in my database and I am making the user go through them all simply through a form that ends when the category their on does not have any more subcategories.

My issue is that I want to trace the Category ID's that the user have chosen when he's at the point of where there are not more categories to choose from.

Could you please help me figure out a way of doing this? I assume it's through an array, and I have tried by adding
<input name=catlistarray[] value=$row[catid]>
but it does not keep the value from the previously submitted form.

I just get the very last Category ID submitted.

Here is the code I am using, hope you can help.

//Start listing the categories
$getcat = mysql_query("SELECT * FROM classifieds_cat WHERE cat_undercat = '$catid'") or die("Category not found: " . mysql_error());
$count = mysql_num_rows($getcat);
if(!$count == 0) {
echo "
Where do you want your ad?<br>
<br>
<b>Choose Your Category:</b><br>
<table>
<form name=mainform action=\"postad.php\" method=\"post\">
<input type=hidden name=adtype value=\"$adtype\">
<input type=hidden name=\"catlist[]\" value=\"$catid\">
<tr><td valign=top>
";
}
while ($row = mysql_fetch_array($getcat, MYSQL_ASSOC)) {
if($catid==$row['cat_id']) { $checked = "checked"; } else { $checked = ""; }
echo "<input type=\"radio\" name=\"catid\" value=\"$row[cat_id]\"$checked onclick=\"mainform.submit()\"> $row[cat_title]<br>";
unset($checked);
}
if(!$count == 0) {
echo "
</select>
</td><td>
<input type=submit value=GO>
</td></tr>
</form>
</table>
";
exit; }
//End of category listing

Please if you can.

[weekender]

not sure if this is the problem (bit too tired to check) but you have some errors in the line

echo "<input type=\"radio\" name=\"catid\" value=\"$row[cat_id]\"$checked onclick=\"mainform.submit()\"> $row[cat_title]<br>";

change it to

echo "<input type=\"radio\" name=\"catid\" value=\"{$row['cat_id']}\"$checked onclick=\"mainform.submit()\">{$row['cat_title']}<br>";

what i've done is to enclose the array output in {}, and to enclose the array key (ie cat_title, cat_id) in ''. Try that

adam

[Swedie]

thanks.

Some dood just said that hey, put the value into the session, so I have put this piece of code at the top

session_start();
session_register("catlist");

and when I want to set the value of $catlist I do this
$_SESSION($catlist) = 1; //or whatever number i want in the array

... and this will become an array right? not just a regular $string ?

[weekender]

this won't become an array - not sure if session vars can be arrays (dont see why not tho!)

if you have $cat_id's of fruits, veg, meat with values 1, 5, 7 then this code

$_SESSION[$cat_id] = $cat_value;

will give you the following vars

$_SESSION['fruit']; //value = 1
$_SESSION['veg']; //value = 5
$_SESSION['meat']; //value = 7

ie distinct values - not an array called cat_id. shouldn't matter tho...

[weekender]

think i'm talking rubbish again! to set a session variable as an array, just do it like this

$_SESSION['categories'][$cat_id] = $cat_value;

this will give us a session var like

$_SESSION['categories'] = ("fruit"=>1, "veg"=>5, "meat"=>7);