<?php
/**
 * 檢測多個主從redis數據庫是否掛掉
 * 建立從數據庫$redis_db的二維數組,內容包含每個從服務器的配置數據
 */
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();
  //連接本地的 Redis 服務
  $status= $redis->connect($host, $port);
  if(!$status) {
    $content .= "redis從數據庫( $host )無法連接 ! <br/>";
    continue;
  }
  if(!empty($db_key['password'])) {
    $pass = $redis->auth($db_key['password']);
    if(!$pass) {
      $content .= "redis從數據庫( $host )密碼錯誤 ! <br/>";
      continue;
    }
  }
  try {
    $config = $redis->info();
    if('up' == $config['master_link_status']) {
    } else {
      $content .= "redis從數據庫( $host )掛掉了! <br/>";
    }
  }
  catch(RedisException $e)
  {
    $content .= "redis從數據庫( $host )報錯：" . $e->getMessage()."<br/>";
  }
}
//若報錯信息不為空,發送報錯郵件
if(!empty($content)) {
  $title = '主從redis數據庫狀態檢測報錯 ';
  $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 主從redis數據庫狀態檢測報錯 郵件發送失敗!'."\n";
    $content = str_replace("<br/>", "\n", $content);
    $message .= $content;
    error_log($message,3,"error.log");
  }
}