Tp5使用Kafka：封装生产者、消费者操作类

【相关文章】PHP操作Kafka：php-rdkafka扩展的安装

1、config.php中配置：

//kafka连接配置
'kafka_server' => [
    'host' => '127.0.0.1:9092',
    'topic' => 'topic1',
],

2、创建一个生产者 KafkaProducer.php ：

<?php
namespace app\index\controller;
class KafkaProducer
{
    private $_rk = null;
    private $_topic = null;
    private static $_instance = null;
    private $_config = [];

    //定义单例模式的变量
    public static function getInstance()
    {
        if (empty(self::$_instance)) {
            self::$_instance = new self();
        }
        return self::$_instance;
    }

    private function __construct()
    {
        $this->_config = config('kafka_server');
        $this->_rk = new \RdKafka\Producer();
        $this-&