Jump to content

[SOLVED] order by ... 2 queries involved..


immanuelx2

Recommended Posts

In the following code, i am doing 2 different queries:

1 to loop through the group names

1 to loop through which members belong to the current group, and finding out how many using mysql_num_rows...

 

However, if you look in the TH i want to be able to ORDER BY the group query by how many members are part of that group, but I'm finding this hard because I can only find out the number of members AFTER I pull the group query... Any ideas?

 

echo "<table><tr><th>Group Name</th><th><a href="?sort=members"># of Members</a></th></tr>";

$group_query = mysql_query("SELECT name, id FROM groups");

while ($group = mysql_fetch_assoc($group_query))
{

     $member_query = mysql_query("SELECT * FROM members AS M, groups AS G WHERE M.group_id = '$group[id]'");

     $member_count = mysql_num_rows($member_query);
     $group_name = $group['name'];

     echo "<tr><td>".$group_name."</td><td>".$member_count."</td></tr>";
}

echo "</table>";

Link to comment
Share on other sites

You can store the data in an array in php and sort it before displaying.

 

As for doing it in mysql, you can do this (untested, also I had to guess your column name for G.group_id):

 

SELECT name, id, count(*) AS member_count FROM groups G JOIN members M ON (G.group_id = M.group_id) GROUP BY name, id ORDER BY count(*) DESC

Link to comment
Share on other sites

This thread is more than a year old. Please don't revive it unless you have something important to add.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.