Question

Here’s the situation.

I have two table in a DB: tblcustomfieldsvalues (for custom fields entry) and tblclients (contains client list).

tblcustomfieldsvalues has following data structure:

id => 10
relid => 13
data => somedataentry

id => 10
relid => 21
data => someotherdataentry

tblclients has following data structure:

id => 13
firstname => somename
lastname => somelastname

I have this code to create an array of relids which have id = 10:

$sql = mysqli_fetch_array(mysqli_query("SELECT * FROM `tblcustomfieldsvalues` WHERE `id` = '10'"));

$cids = array();

while ($row = $sql)
{
    array_push($cids, $row['relid']);
}

Now that I have user IDs of those who have filled their custom fields with some data in the $cids array, how can I get those users details from tblclients?

Thanks in advance.

Answer 1

Sounds like you just need to use an INNER JOIN:

SELECT t2.*
FROM tblcustomfieldsvalues t
  INNER JOIN tblclients t2 ON t.relid = t2.id 
WHERE t.ID = 10

Good luck!