SQL comment with array element PHP

SQL comment with array element PHP

This is my first question in this site hope that some one will help me
over here.
I have a investor table with some fields and a project table with some files
Project table
---------------------
project_investor_id 1,26,29,30,39,48
data stored as , separated values So in my investor admin area i want show
perticular project to show for logedin investor I am using this function.
public function list_all_projects_by_userid ($uid){
$rs = mysql_query("select * from project_table WHERE
project_investor_id LIKE '$uid' ORDER BY project_id DESC");
$i = 0;
while ($row = mysql_fetch_assoc($rs)) {
$result[$i]['project_id'] = $row['project_id'];
$result[$i]['project_investor_id'] = $row['project_investor_id'];
$result[$i]['project_name'] = $row['project_name'];
$result[$i]['project_location'] = $row['project_location'];
$result[$i]['project_location'] = $row['project_location'];
$result[$i]['project_phase'] = $row['project_phase'];
$result[$i]['project_capital'] = $row['project_capital'];
$result[$i]['project_notes'] = $row['project_notes'];
$result[$i]['project_file'] = $row['project_file'];
$i++;
}
return $result;
}
But its not working with project have multiple investors. Please let me
know how recode this?
Thank You