<?php
require __DIR__ . '/bbs/db_conn.php';
$pdo = db_conn();
$rows = $pdo->query('SELECT member_id, sys_comp_code FROM edu_users LIMIT 20')->fetchAll(PDO::FETCH_ASSOC);
foreach ($rows as $r) {
    echo $r['member_id'] . '|' . $r['sys_comp_code'] . PHP_EOL;
}