PHP扩展开发：如何将自定义函数与第三方库集成？

#include <Zend/zend_API.h>
#include <zend_exceptions.h>
#include <ext/standard/php_standard.h>
#include "guzzle.h" // 假设guzzle.h包含了Guzzle库的API声明

extern zend_class_entry *guzzle_client_ce;

ZEND_METHOD(GuzzleClient, request) {
  zval *url, *method, *data; // 函数参数
  guzzle_client *client = (guzzle_client *) Z_OBJ_P(ZEND_THIS);

  if (zend_parse_parameters(ZEND_NUM_ARGS(), "sss", &url, &method, &data) == FAILURE) {
    RETURN_NULL();
  }

  // 构建Guzzle请求并执行
  guzzle_request *request = guzzle_request_new();
  guzzle_request_set_url(request, Z_STRVAL_P(url));
  guzzle_request_set_method(request, Z_STRVAL_P(method));
  if (Z_TYPE_P(data) == IS_STRING) {
    guzzle_request_set_body(request, Z_STRVAL_P(data), -1);
  }
  guzzle_response *response = guzzle_client_request(client->guzzle_client, request);

  // 处理响应并返回结果
  if (!guzzle_response_ok(response)) {
    zend_throw_exception(guzzle_client_ce, "HTTP error", guzzle_response_status(response));
    RETURN_NULL();
  }

  RETURN_OBJ(guzzle_response_body(response));
}