<?php
header('Content-Type: application/json');
$R = ['loaded' => []];
try { $R['pdo_drivers'] = PDO::getAvailableDrivers(); } catch(Throwable $e) { $R['err'] = $e->getMessage(); }
$R['loaded']['pdo'] = extension_loaded('pdo');
$R['loaded']['pdo_sqlite'] = extension_loaded('pdo_sqlite');
$R['loaded']['sqlite3'] = extension_loaded('sqlite3');
echo json_encode($R);