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  • php中curl、fsockopen的应用

    最近要用到通过post上传文件,网上盛传的有curl的post提交和fsockopen,其中curl最简单,于是从最简单的说起。

    这是简单的将一个变量post到另外一个页面

    $url = '';
    $data = array('a'=> 'b');
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    $ret = curl_exec($ch);
    curl_close($ch);
    主要说下这个选项CURLOPT_RETURNTRANSFER:如果设置为true/1,则curl_exec的时候不会自动将请求网页的内容输出到屏幕,$ret为请求网页的内容,如果设置为false/0,则curl_exec的时候会自动将请求网页的内容输出到屏幕,此时如果请求成功的话$ret的内容是1或者true。

    下面是上传本地文件的代码,如果需要上传远程文件,则先down到本地,然后删掉即可(如有同学有别的办法还请告知):

    $url = '';
    $file = '1.jpg';
    $field['uploadFile'] = '@'.$file;(uploadFile为接收端的name名)
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $field);
    $ret = curl_exec($ch);
    curl_close($ch);

    -------------------------------------------------------------------------------------

    这是fsockopen的办法:
            $uploadInfo = array(
                    'host'=>'',
                    'port'=>'80',
                    'url'=>'/upload.php'
            );
            $fp = fsockopen($uploadInfo['host'],$uploadInfo['port'],$errno,$errstr);

        $file = '1.jpg';

                    $content = file_get_contents($file);
                    $boundary = md5(time());
                    $out.="--".$boundary."\r\n";
                    $out.="Content-Disposition: form-data; name=\"uploadFile\"; filename=\"".$file."\"\r\n";
                    $out.="Content-Type: image/jpg\r\n\r\n";
                    $out.=$content."\r\n";
                    $out.="--".$boundary."\r\n";

                    fwrite($fp,"POST ".$uploadInfo['url']." HTTP/1.1\r\n");
                    fwrite($fp,"Host:".$uploadInfo['host']."\r\n");
                    fwrite($fp,"Content-Type: multipart/form-data; boundary=".$boundary."\r\n");
                    fwrite($fp,"Content-length:".strlen($out)."\r\n\r\n");
                    fwrite($fp,$out);
                    while (!feof($fp)){
                            $ret .= fgets($fp, 1024);
                    }
                    fclose($fp);
                    $ret = trim(strstr($ret, "\r\n\r\n"));
                    preg_match('/http:.*/', $ret, $match);
                    return $match[0];

    附上一篇curl的帖子 http://www.cnblogs.com/lmule/archive/2010/10/27/1862734.html

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  • 原文地址:https://www.cnblogs.com/lmule/p/1862725.html
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