Re: undefined variable

isset always returns 0 i create dynamic textbox called quantity0, textbox1, textbox3....... then i a, trying to get the content of the textbox but it is always 0. as you can see, i tried the suggestions but it still dont work. is there something iam doing wroing? why is the textbox always 0? <table width="700"> <? $query1 = mysql_query("SELECT * FROM products where product_group='$cat' order by position"); $counter = 0; while ($rowType = mysql_fetch_array($query1)) { $textbox="quantity"; $textbox= "$textbox$counter"; //variable is set to quantity0, quantity1, quantity2 etc ?> <td width="30%">New row number: <? echo $counter; ?></td> <td width="30%">name of textbox: <? echo $textbox; ?></td> <? //below the textbox will be created?> <td width="10%"><input id="<? $textbox ?>" name="<? $textbox ?>" type="text" value="1" size="1" maxlength="3"></td> <? //get content of textbox $q = isset($_REQUEST['$textbox']) ? $_REQUEST['$textbox'] : 0; ?> <td width="10%"> <a href=" <? echo "products.php?quantity=$q"; ?>" </a>TEST</td> <td width="20%"> <? echo "content of textbox: $q"; ?> </td> </tr> <? $counter++; } ?> </table>