<?php
// test-mysql.php - 独立测 MySQL 握手耗时 + 列出 nc 相关 db
error_reporting(E_ALL);
ini_set('display_errors', '1');

$creds = [
    'host' => '127.0.0.1',
    'port' => 3306,
    'user' => 'root',
    'pass' => '1Qq@1Qq@190*',
];

echo "=== 1) TCP 3306 握手耗时 ===\n";
$start = microtime(true);
$fp = @fsockopen($creds['host'], $creds['port'], $errno, $errstr, 5);
$elapsed = round((microtime(true) - $start) * 1000);
if ($fp) {
    echo "  TCP connect OK in {$elapsed}ms\n";
    fclose($fp);
} else {
    echo "  TCP connect FAILED: $errstr ($errno) in {$elapsed}ms\n";
    exit(1);
}

echo "\n=== 2) MySQL PDO 握手 ===\n";
$start = microtime(true);
try {
    $dsn = "mysql:host={$creds['host']};port={$creds['port']};charset=utf8mb4";
    $pdo = new PDO($dsn, $creds['user'], $creds['pass'], [
        PDO::ATTR_TIMEOUT => 10,
        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
    ]);
    $elapsed = round((microtime(true) - $start) * 1000);
    echo "  PDO connect OK in {$elapsed}ms\n";

    $ver = $pdo->query('SELECT VERSION()')->fetchColumn();
    echo "  MySQL version: $ver\n";

    echo "\n=== 3) Nextcloud 相关 db ===\n";
    $dbs = $pdo->query('SHOW DATABASES')->fetchAll(PDO::FETCH_COLUMN);
    foreach ($dbs as $d) {
        $l = strtolower($d);
        if (strpos($l, 'nextcloud') !== false || strpos($l, 'nc_') !== false) {
            echo "  - $d\n";
        }
    }

    echo "\n=== 4) nextcloud db 表数（如果存在）===\n";
    foreach ($dbs as $d) {
        $l = strtolower($d);
        if (strpos($l, 'nextcloud') !== false) {
            $pdo->exec("USE `$d`");
            $tables = $pdo->query('SHOW TABLES')->fetchAll(PDO::FETCH_COLUMN);
            echo "  $d: " . count($tables) . " tables\n";
            if (count($tables) > 0 && count($tables) < 20) {
                foreach ($tables as $t) echo "    - $t\n";
            }
        }
    }
} catch (Throwable $e) {
    $elapsed = round((microtime(true) - $start) * 1000);
    echo "  PDO connect FAILED in {$elapsed}ms: " . $e->getMessage() . "\n";
}