Aşağıdaki gibi sorunu çözdüm.
<html>
<head>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">    
</head>    
<body>        
<br><br>        
<?php   $datas = json_decode(file_get_contents("http://api.gametracker.rs/demo/json/server_info/95.173.173.9:27015"));   
$datas = $datas->players_list;
?>
<table id="tablePreview" class="table">       
 <thead>    
<tr>
      <th>Oyuncular</th>
      <th>Skor</th>
      <th>Süre</th>    
</tr> 
 </thead>  
<tbody>    
<?php            foreach ($datas as $data) {         ?>   
 <tr>
      <td><?php echo $data->player->name;?></td>
      <td><?php echo $data->player->score;;?></td>
      <td><?php echo $data->player->score;;?></td>     
<?php            }          ?>    
</tr>     
</tbody>
</table>    
</body>
</html>