// Do a query with inner join to get assigned projects.
$sql = "select p.id, p.name from tt_projects p
inner join tt_project_task_binds ptb on (ptb.project_id = p.id and ptb.task_id = $task_id)
// Do a query with inner join to get assigned projects.
$sql = "select p.id, p.name from tt_projects p
inner join tt_project_task_binds ptb on (ptb.project_id = p.id and ptb.task_id = $task_id)