How to apply swoole_mysql

Swoole provides a new asynchronous MySQL client in version 1.8.6. The bottom layer implements the MySQL communication protocol by itself without relying on other third-party libraries, such as libmysqlclient, mysqlnd, mysqli, etc.                                                                                                                                                                                                    (Recommended learning: swoole video tutorial)

Starting from version 1.8.6, Swoole\MySQL has been built into Swoole and does not need to be turned on through the --enable-async-mysql compilation parameter.

swoole_mysql->__construct
创建异步mysql客户端。

Usage examples

$db = new swoole_mysql();
$server = array(
    'host' => '192.168.56.102',
    'port' => 3306,
    'user' => 'test',
    'password' => 'test',
    'database' => 'test',
    'charset' => 'utf8', //指定字符集
    'timeout' => 2,  // 可选：连接超时时间（非查询超时时间），默认为SW_MYSQL_CONNECT_TIMEOUT（1.0）
);
$db->connect($server, function ($db, $r) {
    if ($r === false) {
        var_dump($db->connect_errno, $db->connect_error);
        die;
    }
    $sql = 'show tables';
    $db->query($sql, function(swoole_mysql $db, $r) {
        if ($r === false)
        {
            var_dump($db->error, $db->errno);
        }
        elseif ($r === true )
        {
            var_dump($db->affected_rows, $db->insert_id);
        }
        var_dump($r);
        $db->close();
    });
});

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