zabbix server的/var/www/html/zabbix/api_jsonrpc.php文件已配置；不知道故障出在那里，请指教。谢谢

<?php
header(‘Access-Control-Allow-Origin: *‘);
header(‘Access-Control-Allow-Headers: Content-Type‘);
header(‘Access-Control-Allow-Methods: POST‘);
header(‘Access-Control-Max-Age: 1000‘);
if ($_SERVER[‘REQUEST_METHOD‘] === ‘OPTIONS‘) {
      return;
}
require_once dirname(__FILE__).'/include/func.inc.php';
require_once dirname(__FILE__).'/include/classes/class.chttp_request.php';
$allowed_content = array(
'application/json-rpc' => 'json-rpc',
'application/json' => 'json-rpc',
'application/jsonrequest' => 'json-rpc',
);
$http_request = new CHTTP_request();
$content_type = $http_request->header('Content-Type');
$content_type = explode(';', $content_type);
$content_type = $content_type[0];
if (!isset($allowed_content[$content_type])) {
      header('HTTP/1.0 412 Precondition Failed');
      exit();
}
require_once dirname(__FILE__).'/include/classes/core/Z.php';
header('Content-Type: application/json');
$data = $http_request->body();
try {
      Z::getInstance()->run(ZBase::EXEC_MODE_API);
      $jsonRpc = new CJSONrpc($data);
      echo $jsonRpc->execute();
}
catch (Exception $e) {
      // decode input json request to get request's id
      $jsonData = CJs::decodeJson($data);
      $response = array(
      'jsonrpc' => '2.0',
      'error' => array(
      'code' => 1,
      'message' => $e->getMessage()
      ),
      'id' => (isset($jsonData['id']) ? $jsonData['id'] : null)
      );
      echo CJs::encodeJson($response);
}