raytri Posted April 27, 2010 Share Posted April 27, 2010 I have a page that lets visitors pick up to three machines from a checklist, and then generate a table comparing the features of those machines. The SQL query for the table is assembled thusly: <?php //capture ids of selected machines $atmID = $_POST['atmid']; //Assemble query variable (makes sure query works even if fewer than three machines selected), and count number of machines to get table column count $atmlist = $atmID[0]; $comparecount = 2; if($atmID[1]) {$atmlist .= ",".$atmID[1]; $comparecount ++;} if($atmID[2]) {$atmlist .= ",".$atmID[2]; $comparecount ++;} //Query for assembling comparison chart $selectSQL = "SELECT * FROM ATMcompare WHERE `atmID` IN($atmlist)"; $selectQuery = mysql_query($selectSQL); ?> So far so good. If I fetch the array from the above query, I'll have an array containing up to three subarrays, one for each machine selected. But I can't figure out how to echo the subarray values directly to a table, something like this: <?php $selectArray = mysql_fetch_array($selectQuery); ?> <tr><td><p><strong>ATM model</strong></p></td><td><?php echo $selectArray[0][1]; ?></td><td><?php echo $selectArray[1][1]; ?></td><td><?php echo $selectArray[2][1]; ?></td></tr> I've made the page work, but only by using a while statement to loop through the array for each feature, and rewinding the pointer with mysql_data_seek after each loop: <tr><td><p><strong>ATM model</strong></p></td> <?php while ($item = mysql_fetch_array($selectQuery)) { echo "<td><p><strong>".$item['Maker']." ".$item['Model']."</strong></p></td>"; } mysql_data_seek($selectQuery,0); ?> </tr> I prefer the first approach because it makes for cleaner code, appears to involve a lot less processing, and would prove I understand array structures. Any tips? Link to comment https://forums.phpfreaks.com/topic/199936-multidimensional-array-help/ Share on other sites More sharing options...
andrewgauger Posted April 27, 2010 Share Posted April 27, 2010 all you need is: while (selectArray[]=mysql_fetch_array($selectQuery)); between code block 1 and 2 Link to comment https://forums.phpfreaks.com/topic/199936-multidimensional-array-help/#findComment-1049406 Share on other sites More sharing options...
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