PHP嵌套的foreach循环显示表

Question

I'm looking to generate an HTML table like below.

|nick_name| bookmarked_sites  |
-------------------------------
| admin   | http://test1.com  |
|         | http://test2.com  |
|         | http://test3.com  |
-------------------------------
| John    | http://mysite.com |
-------------------------------

I'm query the database using $wpdb and it's building an array of information which looks like this:

$userquery = $wpdb->get_results("SELECT * FROM bookmarks");
print_r($userquery);

Array ( 
[0] => stdClass Object ( 
    [id] => 1 [user_id] => 1 [post_id] => 1654,1532,1672,1610,1676 ) 
[1] => stdClass Object ( 
    [id] => 3 [user_id] => 6 [post_id] => 1680,1654 ) )

I started to build my first foreach to extract the user_id, then I had a nested foreach to extract the post_id for that user. But I'm realizing now that I can't easily build an HTML table off that concept.

I'm having a hard time conceptualizing the logic to put this all together.

Thanks!

Answer 1

You are on the right track. It would something like:

echo '<table>';
foreach ($userquery as $user) {
  //load sites into $loadedsites

  $rowheight = count($loadedsites);
  $c = 0;

  //if there is a user without any sites, the rowheight would be 0.
  //You need to deceide what to do than, because now it wouldnt show the user at all.

  foreach($loadedsites as $site) {

    if ($c==0)
      echo '<tr><td rowspan="'.$rowheight.'">'.$user->user_id.'</td><td>'.$site->url.'</td></tr>';
    else
      echo '<tr><td>'.$site->url.'</td></tr>';

    $c++;
  }
}
echo '</table>';