预定义常量

以下常量由本扩展模块定义，因此只有在本扩展模块被编译到 PHP 中，或者在运行时被动态加载后才有效。

OAUTH_SIG_METHOD_HMACSHA1 (string)

OAuth HMAC-SHA1 signature method

OAUTH_AUTH_TYPE_AUTHORIZATION (string)

This constant represents putting OAuth parameters in the Authorization header.

OAUTH_AUTH_TYPE_URI (string)

This constant represents putting OAuth parameters in the request URI.

OAUTH_AUTH_TYPE_FORM (string)

This constant represents putting OAuth parameters as part of the HTTP POST body.