写一个php的curl完整的封装类

<?php
/**
 * CurlWrapper - A PHP cURL wrapper class for easy HTTP requests
 *
 * This class provides a simple interface for making GET and POST requests using cURL.
 * It supports both HTTP and HTTPS, and can handle JSON and form-urlencoded data.
 *
 * @author TANKING
 * @date 2022-03-17
 */
class CurlWrapper {
    private $ch;
    private $response;
    private $error;

    /**
     * Constructor initializes cURL session
     */
    public function __construct() {
        $this->ch = curl_init();
        curl_setopt($this->ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($this->ch, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($this->ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($this->ch, CURLOPT_SSL_VERIFYHOST, false);
    }

    /**
     * Set the URL for the request
     *
     * @param string $url The URL to request
     * @return $this
     */
    public function setUrl($url) {
        curl_setopt($this->ch, CURLOPT_URL, $url);
        return $this;
    }

    /**
     * Set the request method to GET
     *
     * @return $this
     */
    public function setGet() {
        curl_setopt($this->ch, CURLOPT_HTTPGET, true);
        return $this;
    }

    /**
     * Set the request method to POST and set the POST data
     *
     * @param array $data The data to POST
     * @param string $contentType The content type of the data (json or form)
     * @return $this
     */
    public function setPost($data, $contentType = 'form') {
        curl_setopt($this->ch, CURLOPT_POST, true);
        if ($contentType === 'json') {
            $data = json_encode($data);
            curl_setopt($this->ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
        }
        curl_setopt($this->ch, CURLOPT_POSTFIELDS, $data);
        return $this;
    }

    /**
     * Execute the cURL request
     *
     * @return $this
     */
    public function execute() {
        $this->response = curl_exec($this->ch);
        if ($this->response === false) {
            $this->error = curl_error($this->ch);
        }
        return $this;
    }

    /**
     * Get the response from the cURL request
     *
     * @return string
     */
    public function getResponse() {
        return $this->response;
    }

    /**
     * Get any error that occurred during the cURL request
     *
     * @return string
     */
    public function getError() {
        return $this->error;
    }

    /**
     * Close the cURL session
     */
    public function close() {
        curl_close($this->ch);
    }
}

// Example usage:
// $curl = new CurlWrapper();
// $response = $curl->setUrl('https://example.com')
//                 ->setGet()
//                 ->execute()
//                 ->getResponse();
// echo $response;
// $curl->close();

说明

• CurlWrapper 类封装了 cURL 的基本功能，支持 GET 和 POST 请求，并能处理 JSON 和 form-urlencoded 数据。
• 使用链式调用方式，简化了请求的设置和执行过程。
• 提供了错误处理机制，确保在请求失败时能够获取错误信息。
• 类的设计遵循面向对象的原则，易于扩展和维护。