sqlite3 return collumn name

collumn_name.php

<?php
$db = new SQLite3("mydb.db");
$perintah = <<<AOD
SELECT name FROM sqlite_master
AOD;
$lakukan = $db->query($perintah);
while($data = $lakukan->fetchArray()){
    //echo  $data["name"]." | ";
}

$perintah2 = <<<AOD
PRAGMA table_info(biodata)
AOD;

$lakukan2 = $db->query($perintah2);
while($data2 = $lakukan2->fetchArray()){
    echo $data2["name"]." | ";
}
?>