php - How do i get data from one table according to an id field in another? -


so far loop pulls item images items table using method created , positions them wonderfully.

now trying use $linv['item_id'] find item id's of items in items table, , pull data table use between <span> tags (creating tooltip).

i'm confused sql calls now.

<?php     $idata = mysql_query("select * `items` `item_id`='".$linv['item_id']."'");     while($linv = mysql_fetch_array($inv)){             $idata = mysql_fetch_array($itemdata);             echo "<a class='tooltips' href='#'><img id='bagicons' src='".getiimage($linv['item_id'])."' />             <span>             ".$itemdata['item_name']."             </span></a>" ;         }     ?>     </div>     <div id="spacer"> </div>     <?php     echo "<div id='char'>".createavatar($_session['uid'])."</div>";     include("footer.php"); ?>

change

<?php $idata = mysql_query("select * `items` `item_id`='".$linv['item_id']."'"); while($linv = mysql_fetch_array($inv)){         $idata = mysql_fetch_array($itemdata);         echo "<a class='tooltips' href='#'><img id='bagicons' src='".getiimage($linv['item_id'])."' />         <span>         ".$itemdata['item_name']."         </span></a>" ;     } ?>

to

 <?php while($linv = mysql_fetch_array($inv)) {     $idata_result_set = mysql_query("select * `items` `item_id`='".$linv['item_id']."'");     if(mysql_num_rows($idata_result_set) == 0)         continue;     $idata = mysql_fetch_array($idata_result_set);     echo "<a class='tooltips' href='#'><img id='bagicons' src='".getiimage($linv['item_id'])."' />     <span>     ".$idata['item_name']."     </span></a>" ; } ?>

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