PHP实现的redis主从数据库状态检测功能示例

<?php/** * 检测多个主从redis数据库是否挂掉 * 建立从数据库$redis_db的二维数组，内容包含每个从服务器的配置数据 */header("Content-Type: text/html; charset=utf-8");set_time_limit(0);$redis_db = array(  'db1'=>array(    'hostname' => '127.0.0.1',    'port' => 6379,    'password' => '',  ),  'db2'=>array(    'hostname' => '192.168.2.179',    'port' => 6379,    'password' => '111111',  ),);$content = '';foreach ($redis_db as $db_key) {  $host = $db_key['hostname'];  $port = $db_key['port'];  $redis = new Redis();  //连接本地的 Redis 服务  $status= $redis->connect($host, $port);  if(!$status) {    $content .= "redis从数据库( $host )无法连接 ！ <br/>";    continue;  }  if(!empty($db_key['password'])) {    $pass = $redis->auth($db_key['password']);    if(!$pass) {      $content .= "redis从数据库( $host )密码错误 ！ <br/>";      continue;    }  }  try {    $config = $redis->info();    if('up' == $config['master_link_status']) {    } else {      $content .= "redis从数据库( $host )挂掉了！ <br/>";    }  }  catch(RedisException $e)  {    $content .= "redis从数据库( $host )报错：" . $e->getMessage()."<br/>";  }}//若报错信息不为空，发送报错邮件if(!empty($content)) {  $title = '主从redis数据库状态检测报错 ';  $content = date("Y-m-d H:i:s",time()) . "<br/>" . $content;  $sendurl = "http://localhost/api.com/test.php?title=".$title."&content=".$content;  $result = file_get_contents($sendurl);  if('ok' != $result) {    $message = date("Y-m-d H:i:s",time()).' redisSlave.php 主从redis数据库状态检测报错 邮件发送失败!'."/n";    $content = str_replace("<br/>", "/n", $content);    $message .= $content;    error_log($message,3,"error.log");  }}