在非对象错误时调用成员函数 - Call to a member function on a non-object error

Call to a member function on a non-object error

我在这里使用此代码从我的Minecraft服务器获取信息。它使用静态.php文件按预期执行，但是将其移动到WordPress的本地副本后，我收到以下错误：

Fatal error: Call to a member function GetPlayers() on a non-object in C:'...'home.php on line 125

我很确定我正确地移动了所有内容。在第 125 行，是这段代码：

<div class="online group container">
      <h2> Who's online </h2>
          <?php if( ( $Players = $Query->GetPlayers( ) ) !== false ): ?>
          <?php foreach( $Players as $Player ): ?>
          <div class="player">                      
            <span class="p"  title="<?php echo htmlspecialchars( $Player ); ?>" data-player="<?php echo htmlspecialchars( $Player ); ?>">☺</span>
          </div><!-- /.player -->

这就是我在 header.php 中调用 PHP 类的方式，在 doctype 之前。

<?php
  define( 'MQ_SERVER_ADDR', '108.170.3.138:25643' );
  define( 'MQ_SERVER_PORT', 25643 );
  define( 'MQ_TIMEOUT', 1 );
  require bloginfo('template_url') . 'inc/avatars/MinecraftQuery.class.php';
  $Timer = MicroTime( true );
  $Query = new MinecraftQuery( );
  try
  {
    $Query->Connect( MQ_SERVER_ADDR, MQ_SERVER_PORT, MQ_TIMEOUT );
  }
  catch( MinecraftQueryException $e )
  {
    $Error = $e->getMessage();
   echo 'error. <br>'. $Error;
  }
?>

这很奇怪，因为它在没有WordPress的情况下工作得很好，但是一旦我移动了它，它就坏了。我做错了什么？

创建函数，它将返回查询

功能.php

function get_MQ_Query() {
  define( 'MQ_SERVER_ADDR', '108.170.3.138:25643' );
  define( 'MQ_SERVER_PORT', 25643 );
  define( 'MQ_TIMEOUT', 1 );
  require bloginfo('template_url') . 'inc/avatars/MinecraftQuery.class.php';
  $Timer = MicroTime( true );
  $Query = new MinecraftQuery( );
  try
  {
    $Query->Connect( MQ_SERVER_ADDR, MQ_SERVER_PORT, MQ_TIMEOUT );
  }
  catch( MinecraftQueryException $e )
  {
    $Error = $e->getMessage();
   echo 'error. <br>'. $Error;
  }
  return $Query;
}

首页.php

$Query = get_MQ_Query();
?><div class="online group container">
  <h2> Who's online </h2>