19 lines
614 B
PHP
19 lines
614 B
PHP
<?php
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require_once __DIR__ . "/config.php";
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function db() {
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static $pdo = null;
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if ($pdo === null) {
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$dsn = "mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=" . DB_CHARSET;
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try {
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$pdo = new PDO($dsn, DB_USER, DB_PASS, [
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
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PDO::ATTR_EMULATE_PREPARES => false,
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]);
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} catch (PDOException $e) {
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die("数据库连接失败: " . htmlspecialchars($e->getMessage()));
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}
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}
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return $pdo;
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} |