symfony - Symfony getMethod() 与 getRealMethod()

Question

我知道 symfony api 解释 getMethod() 获取请求“预期”方法，而 getRealMethod() 获取“真实”请求方法，但我无法弄清楚“预期”和“真实”是什么意思。谁能告诉我？谢谢

Answer 1

getRealMethod()返回真正的请求方法，同时getMethod()返回预期的请求方法，这意味着真正的请求方法POST只是 symfony 像其他人一样对待DELETE。

请参见下面的示例：

<form method="post" action="..." >
  <input type="hidden" name="_method" value="DELETE" />
  ...
</form>

真正的请求方法是POST，whilegetMethod()会返回DELETE。

检查来源：

/**
 * Gets the request "intended" method.
 *
 * If the X-HTTP-Method-Override header is set, and if the method is a POST,
 * then it is used to determine the "real" intended HTTP method.
 *
 * The _method request parameter can also be used to determine the HTTP method,
 * but only if enableHttpMethodParameterOverride() has been called.
 *
 * The method is always an uppercased string.
 *
 * @return string The request method
 *
 * @api
 *
 * @see getRealMethod
 */
public function getMethod()
{
    if (null === $this->method) {
        $this->method = strtoupper($this->server->get('REQUEST_METHOD', 'GET'));

        if ('POST' === $this->method) {
            if ($method = $this->headers->get('X-HTTP-METHOD-OVERRIDE')) {
                $this->method = strtoupper($method);
            } elseif (self::$httpMethodParameterOverride) {
                $this->method = strtoupper($this->request->get('_method', $this->query->get('_method', 'POST')));
            }
        }
    }

    return $this->method;
}

/**
 * Gets the "real" request method.
 *
 * @return string The request method
 *
 * @see getMethod
 */
public function getRealMethod()
{
    return strtoupper($this->server->get('REQUEST_METHOD', 'GET'));
}