swoole-framwork/core/lib/PDOPool.php

<?php

namespace Core\lib;

use function DI\get;

class PDOPool extends DBPool
{
    public function __construct($min = 5, $max = 10)
    {
        global $GLOBAL_CONFIGS;
        $poolconfig = $GLOBAL_CONFIGS["dbpool"]["default"];
        parent::__construct($poolconfig['min'], $poolconfig['max']);
        //\Swoole\Runtime::enableCoroutine(true);
    }

    protected function newDB()
    {
        global $GLOBAL_CONFIGS;
        $default = $GLOBAL_CONFIGS["db"]["default"];
        {
            $driver   = $default["driver"];
            $host     = $default["host"];
            $dbname   = $default['database'];
            $username = $default["username"];
            $password = $default["password"];
            $dsn      = "$driver:host=$host;dbname=$dbname";
        }
        $options = [
            \PDO::ATTR_ERRMODE            => \PDO::ERRMODE_EXCEPTION,
            \PDO::ATTR_DEFAULT_FETCH_MODE => \PDO::FETCH_ASSOC,
            \PDO::ATTR_EMULATE_PREPARES   => false,
        ];
        $options1 = array(
            \PDO::ATTR_PERSISTENT => true
        );

        try {
            $pdo = new \PDO($dsn, $username, $password);
            return $pdo;
        }catch (\Exception $e) {
            echo $e->getMessage() . PHP_EOL;
            throw new \Exception('数据库链接失败');
        }
    }
}