<?php
//принимаем данные
$user=$_POST['user'];
$org=$_POST['org'];

//соединяемся с БД
$dbconn = pg_connect("host=localhost dbname=passport user=postgres password=Pwd000")
    or die('Could not connect: ' . pg_last_error());
//ищем данные о введенной организации
//SELECT name,type,id FROM orgs WHERE CAST(id AS text) LIKE '133%' ORDER BY id
$query = 'SELECT id FROM items WHERE orgid = '.$org.'';
echo $query;
$result = pg_query($query) or die(pg_last_error());
while ($line = pg_fetch_array($result, null, PGSQL_ASSOC)) {
    foreach ($line as $col_value) {
        echo $col_value .";";
    }
}
// Очистка результата
pg_free_result($result);

// Закрытие соединения
pg_close($dbconn);
?>