微信开发【素材管理】上传临时素材

 public function uploadImg($imgUrl){

        $TOKEN=$this->getAccessToken();
        $URL  ='http://file.api.weixin.qq.com/cgi-bin/media/upload?access_token='.$TOKEN.'&type=image';
        $data = array('media'=>'@'.$imgUrl);
        $result = $this->curl_post($URL,$data);
        $data = @json_decode($result,true);
      
        return $data['media_id'];
    }

 public function getAccessToken(){

        $url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=wxe574b1bd35d7d4da&secret=d4624c36b6795d1d99dcf0547af5443d';  
        
        $result = json_decode($this->curlGet($url),true);

        return $result['access_token'];
    }

 function curl_post($url, $data = null)
{
    //创建一个新cURL资源
    $curl = curl_init();
    //设置URL和相应的选项 
    curl_setopt($curl, CURLOPT_URL, $url);
    if (!empty($data)){
        curl_setopt($curl, CURLOPT_POST, 1);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
    }
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    //执行curl，抓取URL并把它传递给浏览器
    $output = curl_exec($curl);
    //关闭cURL资源，并且释放系统资源
    curl_close($curl);
    return $output;
}

调用 uploadImg($imgurl) 传图片地址参数

返回结果

array (
  'type' => 'image',
  'media_id' => 'W89mt3FEaxXOMOw0fLj2Cb6A8vfMjuXrj6XW59O3l9a7Tj_h2SjlBEr4dvp4Du2R',
  'created_at' => 1464140301,
)