php - Replacing a pulled SQL ID value with its name from another table -


i have code (see below) populates table records. want replace id presented site_id actual name stored in table. site_id example primary key in table called sites_tbl, , want pull associated sitename , display in table rather id comes sheets_tbl foreign key. assume need kind of loop, foreach site_id within $data variable select sitename site_id = $row['site_id'] cannot work.

$sql  = "select * sheet_tbl"; $stmt = $conn->prepare($sql); $stmt->execute(); $data = $stmt->fetchall();     <?php foreach ($data $row): ?>     <tr>         <td><?=$row['sheet_id']?></td>         <td><?=$row['username']?></td>         <td><?=$row['site_id']?></td>    </tr>

i advise simple sql join. assuming site name sitename in sites_tbl:

$sql  = "select sheet.sheet_id, sheet.username, site.sitename sheet_tbl s        join sites_tbl st on st.site_id = s.site_id "; $stmt = $conn->prepare($sql); $stmt->execute(); $data = $stmt->fetchall();     <?php foreach ($data $row): ?>     <tr>         <td><?=$row['sheet_id']?></td>         <td><?=$row['username']?></td>         <td><?=$row['sitename']?></td>    </tr>

so not have data sheet_tbl associated data sites_tbl can use directly.

read more joins here: http://www.w3schools.com/sql/sql_join.asp


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