php curl 上传临时图片素材到企微完成员工群发小程序_php 企业微信上传临时素材-优快云博客

本文链接：https://blog.youkuaiyun.com/jiutengteng/article/details/131453087

该代码段展示了一个PHP类`UploadPart`，用于处理向微信API上传图片的分片过程。类中定义了构造函数接收URL，`putPart`方法通过CURL发送POST请求，包含multipart/form-data格式的数据。类内部构建了数据包，包括参数和文件内容。

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<?php


namespace app\doctor\controller\v3;


class UploadPart
{
    protected static $url;
    protected static $delimiter;

    public function __construct($url)
    {
        static::$url = $url;
        static::$delimiter = uniqid();
    }

    public function putPart($param)
    {
        $post_data = static::buildData($param);
        $curl = curl_init(static::$url);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_POST, true);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $post_data);
        curl_setopt($curl, CURLOPT_HTTPHEADER, [
            "Content-Type: multipart/form-data; boundary=" . static::$delimiter,
            "Content-Length: " . strlen($post_data)
        ]);
        $response = curl_exec($curl);
        curl_close($curl);
        return $response;
    }

    private static function buildData($param)
    {
        $data = '';
        $eol = "\r\n";
        $upload = $param['upload'];
        unset($param['upload']);

        foreach ($param as $name => $content) {
            $data .= "--" . static::$delimiter . "\r\n"
                . 'Content-Disposition: form-data; name="' . $name . "\"\r\n\r\n"
                . $content . "\r\n";
        }
        // 拼接文件流
        $data .= "--" . static::$delimiter . $eol
            . 'Content-Disposition: form-data; name="media"; filename="' . $param['filename'] . '"' . "\r\n"
            . 'Content-Type:application/octet-stream' . "\r\n\r\n";

        $data .= $upload . "\r\n";
        $data .= "--" . static::$delimiter . "--\r\n";
        return $data;
    }
}

        $accessToken = $this->getToken();
        $url = "https://qyapi.weixin.qq.com/cgi-bin/media/upload?access_token={$accessToken}&type=image";
        $fields = array(
            'filename' => $fileName, //1.png
            'upload' => file_get_contents($fileUrl) //https://images/1.png
        );
        $obj = new UploadPart($url);
        return $obj->putPart($fields);