PHP7 cURL上传文件

在做微信上传素材文件时出了点问题，服务器提示media缺失，原上传代码如下：

function https_request($url,array $data = null) {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        if ($data){
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        }
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        $output = curl_exec($curl);
        curl_close($curl);
        return $output;
    }

将上传文件声明为

$data['media'] = @.'file.path';

于是就得到了上诉的错误。

在网上找了一堆资料之后，有人的建议是在设置fields之前关闭安全上传操作，代码如下

curl_setopt ( $curl, CURLOPT_SAFE_UPLOAD, false);

但是到运行时会出现以下错误：curl_setopt(): Disabling safe uploads is no longer supported

意思时该设置项已经不被支持。

之后在官方文档上找到：

CURLOPT_SAFE_UPLOAD TRUE to disable support for the @ prefix for uploading files inCURLOPT_POSTFIELDS, which means that values starting with @can be safely passed as fields. CURLFile may be used for uploads instead.

于是尝试使用CURLFile（PHP5.5以上开始支持），

具体代码如下：

function postFile($url,$path,$others=null){
        $ch = curl_init($url);
        $cfile = new \CURLFile($path);

        $others or $others = [];
        $others['media'] = $cfile;
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch, CURLOPT_POST,1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $others);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

        $output = curl_exec($ch);
        curl_close($ch);
        return $output;
    }

最终成功将文件上传至服务器

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