display array of items from DB php/MySQL

Question

I am unsure how to display the items field. I want to display two tables of data; one that has all the items from a user and one with all the items to teh user. All I've been able to output is the item_id's (I pasted the html below). How to get all the item info from these ids, which is in the item table, and populate the HTML?

trans table

item table

$from = 1;
$sql = $db->prepare("SELECT * FROM test WHERE from_id = :id");
$sql->bindValue(':id', $from);

$sql->execute();

while($row = $sql->fetch())
{
    $t =$row['items'];
    $u =$row['to_id'];
    $trans .= "<tr><th>Items</th><th>To</th><th>Status</th></tr><tr><td>$t</td>
            <td>$u</td></tr>";
} 

HTML DISPLAY

Answer 1

Try this!

<?php
    $from = 1;
   $sql = $db->prepare("SELECT * FROM test WHERE from_id = :id");
   $sql->bindValue(':id', $from);

   $sql->execute();

  while($row = $sql->fetch())
    {
     $t =$row['items'];
     $u =$row['to_id'];
             $itemIDs = @explode(",", $t);
         $items = array();
            foreach($itemIDs as $ID){
            $sqlItem = $db->prepare("SELECT itemname FROM itemtable WHERE itemid = :itemid");
            $sqlItem->bindValue(':itemid', $ID);
            $sqlItem->execute();
            $itemname ='';
            while($rowItems = $sqlItem->fetch())
            {
                $itemname .=$rowItems['itemname'];
            }

            $items[$t] = $itemname;

     }   

        $trans .= "<tr><th>Items</th><th>To</th><th>Status</th></tr><tr><td>$items[$t]</td>  <td>$u</td></tr>";
   }  

below is my code for testing,

<?php

  $from = 1;
 $sql = mysqli_query($db,"SELECT * FROM test WHERE from_id = '$from'");  
 while($row = mysqli_fetch_array($sql))
 {

     $t =$row['items'];
     $u =$row['to_id'];
     $itemIDs = @explode(",", $t);
     $itemname ='';
        foreach($itemIDs as $ID){
            $sqlItem = mysqli_query($db, "SELECT itemname FROM itemtable WHERE item_id = '$ID'");           

            while($rowItems = mysqli_fetch_array($sqlItem))
            {
                 $itemname .= $rowItems['itemname'].', ';
            }       


            $items[$u] = $itemname;

     }      
    $trans .= "<tr><th>Items</th><th>To</th><th>Status</th></tr><tr><td>$items[$u]</td>  <td>$u</td></tr>";
  } 

  echo "<table>".$trans."</table>";
?>

Answer 2

Note : change my queries with ur need

in ur while loop

while($row = $sql->fetch())
{
$items_array = array();
$items_array = explode(",",$row["items"]);

    foreach($items_array as $key => $value)
    {                                       
        //modify ur query according to ur need
        $query3 = "SELECT  item_name
            FROM item_table 
            WHERE item_id =".$value." ";
        $result3 = mysql_query($query3);
        $row3 = mysql_fetch_assoc($result3);                                            
        $item_name .= $row3['subcategory_name'].", ";

    }
}

now ur array will contains item_id, use foreach loop in ur while loop and get info of Item from item table with item_id from expolode function

Answer 3

Within while you will have to fire new query that will get the information of items. For eg :

"SELECT * FROM item_info_table WHERE id IN (id1,id2, id3)"

It will return you the item information corresponding to the id's.

Answer 4

The data is not normalized. Get it to normalize and you'll have a much better and cleaner solution.