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我正在使用基于 PHP 的开源聊天机器人，并尝试将最终用户输入的消息保存到触发“回退”功能的机器人中。这样我就可以看到人们向机器人询问了哪些我可能没有构建逻辑/答案的事情。但是我的问题是 mysql 插入似乎不起作用。如果我将我的实际查询传递给 phpmyadmin，则查询有效，但在 php 页面中它不起作用，因此试图找出它可能不起作用的原因。

这是我的完整代码

<?php
  require_once('../vendor/autoload.php');

  use BotMan\BotMan\BotMan;
  use BotMan\BotMan\BotManFactory;
  use BotMan\BotMan\Drivers\DriverManager;
  use BotMan\BotMan\Middleware\ApiAi;

  DriverManager::loadDriver(\BotMan\Drivers\Web\WebDriver::class);

  $config = [
     'web' => [
                 'matchingData' => [
                 'driver' => 'web',
                 ],
              ]
            ];

  $botman = BotManFactory::create($config);
  $dialogflow = ApiAi::create('123abc')->listenForAction();

   // Apply global "received" middleware
   $botman->middleware->received($dialogflow);

   //lets open connection to the mysql database
   $chatdbconn = mysqli_connect("localhost","root","root","chatdb");
   $chatdatetime = date('Y-m-d H:i:s');

   /////////////////////////////////////
   // DIALOG FLOW
   /////////////////////////////////////
   $botman->hears('hello|customerservice_contact|brand_feeling', function (BotMan $bot) {
    // The incoming message matched the "my_api_action" on Dialogflow
   // Retrieve Dialogflow information:
   $extras = $bot->getMessage()->getExtras();
   $apiReply = $extras['apiReply'];
   $apiAction = $extras['apiAction'];
   $apiIntent = $extras['apiIntent'];

   $bot->typesAndWaits(2);
   $bot->reply($apiReply);
  })->middleware($dialogflow);


  $botman->fallback(function($bot) {
    global $chatdbconn;
    $phrase = $bot->getMessage();
    $unknownphrase = mysqli_real_escape_string($chatdbconn, $phrase->getText());


    //$created_on = date('Y-m-d H:i:s');
    mysqli_query($chatdbconn, "INSERT into chatbot_unknown_phrases(the_phrase) VALUES('$unknownphrase')");
    $bot->typesAndWaits(2);
    $bot->reply('Sorry, I did not understand the command.');
    });
      // Start listening
      $botman->listen();
    ?>
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