php-URL方法下载远程图片

1 public function downloadPic(){//测试可行，网上看的，远程下载图片*/
2         $return_content = $this->https_request( $listsInfo[0][‘photo_url‘]);//将图片的url传入url方法来获得图片内容
3         $filename = ‘E:\phpStudy\WWW\web1\wexin\public\static\uploads\list.jpg‘;  
4         $fp= @fopen($filename,"a"); //将文件绑定到流 ??   
5         var_dump( fwrite($fp,$return_content)); //写入文件 
6 }

 1 public function https_request($url)//简洁版curl接口调用函数
 2 {
 3      $curl=curl_init();
 4      curl_setopt($curl,CURLOPT_URL,$url);
 5      curl_setopt($curl,CURLOPT_SSL_VERIFYPEER, FALSE);
 6      curl_setopt($curl,CURLOPT_SSL_VERIFYHOST,FALSE);
 7      curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);
 8      $data=curl_exec($curl);
 9      if(curl_errno($curl)){return ‘ERROR‘.curl_errno($curl);}
10      curl_close($curl);
11      return $data;
12 }