PHP uses CURL to upload images from other people's servers to your own image cloud space

If you get pictures from other people's servers in the background and want to upload them to your own cloud space, then you need to upload the pictures in the background, so you need to use CURL to upload.

/**
     * 图片上传
     * @author Dong
     * @date   2018-04-08
     * @param  [type]     $url  文件路径
     * @param  [type]     $type 文件类型
     */
    function upload_im_img($url,$type){
        // 二进制文件上传
        $file= file_get_contents($url);
        $filename = 'Filedata';//上传到$_FILES数组中的 key 
        $name = uniqid('',true).'.'.$type;//文件名 
        $type = 'image/jpeg';//文件类型 
         
        $key = "$filename\"; filename=\"$name\r\nContent-Type: $type\r\n"; 
        $fields[$key] = $file;  
        //将图片上传到七牛返回图片路径
        $ch = curl_init ();
        $url = 'http://你的域名.com/api/uploadqiniu.html';  
        curl_setopt ( $ch, CURLOPT_SAFE_UPLOAD, false);  
        curl_setopt ( $ch, CURLOPT_URL, $url );  
        curl_setopt ( $ch, CURLOPT_POST, 1 );  
        curl_setopt ( $ch, CURLOPT_POSTFIELDS, $fields );  
        curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 );  
        $filename= curl_exec ( $ch );
        $filename = substr($filename,3);//进行截取
        return  $fileurl;
    }

I am uploading a binary stream image. If it is text, you need to change the suffix of $type and ￥name. The URL I have here is TP's own upload image class. I just changed the configuration and uploaded it directly to Qiniu Cloud Space, and then returned the image name. Note that there is always a red dot in front of $fileurl when I return it, so I intercepted it.

function uploadqiniu(){
        $exts = array('bmp','jpg', 'tif','tiff','gif', 'png', 'jpeg','xls','xlsx','dwg','dxf','hom','zip','txt','max','3ds','obj','fbx');
        if (!empty($_FILES)) {
            //图片上传设置
            $config = array(
                'maxSize'    =>    30*1024*1024, //设置附件上传大小  30MB = 31457280;
                'savePath'   =>    '',
                'saveName'   =>    array('uniqid',''),//
                'exts'       =>    $exts,
                'autoSub'    =>    false,
                'subName'    =>    '',//保存后缀,
            );
            $driverConfig = array (
                'accessKey' => C('PIC_AK'),
                'secretKey' => C('PIC_SK'),
                'domain' => C('PIC_DOMAIN'),
                'bucket' => C('PIC_BUCKET'),
            );
    
            $Upload = new \Think\Upload($config,'Qiniu',$driverConfig);
            $return_img = $Upload->upload($_FILES);
            //判断是否有图
            if($return_img){
                $filename = $return_img['Filedata']['savename'];
                echo $filename;
            }else{
                $this->error($Upload->getError());//获取失败信息
            }
            
        }

    }

It is very simple to upload pictures directly to Qiniu. Just add 2 more parameters after the Upload method, and that’s it.

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