cara menampilkan data pinjaman sesuai user yang login

disini saya ingin menampilkan data barang yang di pinjaman berdasarkan user yang login

berikut struktur tabel yang saya miliki

'tabel users'

id_users

nama_user

username

password

role

'tabel peminjaman'

id_peminjaman

id (berelasi ketabel barang)

users (berelasi ketabel users)

jumlah_pinjaman

tgl_pinjaman

// berikut untuk loginnya
function login_cek($user)
{
    global $conn;
    $user = escape($user);

    $query = "SELECT * FROM users WHERE username = '$user'";
    if ($result = mysqli_query($conn, $query)) {
        if (mysqli_num_rows($result) != 0) return true;
        else return false;
    }
}

function cek_login($user, $pass)
{
    global $conn;
    $user = escape($user);
    $pass = escape($pass);

    $query = "SELECT password FROM users WHERE username = '$user'";
    $result = mysqli_query($conn, $query);
    $result = mysqli_fetch_assoc($result)['password'];
    // print_r($result);
    if (password_verify($pass, $result)) {
        return true;
    } else {
        return false;
    }
}

function redirec_login($user)
{
    $_SESSION['user'] = $user;
    header('Location:./?view=dashboard');
}

function cek_status($user)
{
    global $conn;
    $user = escape($user);

    $query = "SELECT role FROM users WHERE username='$user'";
    $result = mysqli_query($conn, $query);
    $role = mysqli_fetch_assoc($result)['role'];
    // die($role);
    if ($role == 0) {
        $_SESSION['user'] = $user;
        $_SESSION['id_user'] = $role;
    }
    if ($role == 1) {
        $_SESSION['user'] = $user;
        $_SESSION['id_user'] = $role;
    }
    if ($role == 2) {
        $_SESSION['user'] = $user;
        $_SESSION['id_user'] = $role;
    }
    return $role;
    // if ($role == 0) return true;
    // return $role;
}

berikut untuk query menampilkan data pinjaman

$pinjaman = pinjaman("SELECT * FROM tb_pinjaman AS a
LEFT JOIN tb_sarpases AS b ON a.id=b.id");