php+curl上传文件到远程服务器

一、window下安装php_curl支持

　　1.将PHP安装文件夹下的三个文件php_curl.dll(可能在ext文件夹中),libeay32.dll,ssleay32.dll 复制到 %windir%/system32下;
　　2.打开php.ini(可能在PHP环境的安装目录下，默认在c:\WINDOWS目录下)，将;extension=php_curl.dll头部的分号去掉;

　　3.重启php的服务(apache或者IIS)，如重启IIS，运行iisreset即可。

二、注意事项。

    注意服务器文件夹的权限，

    php.ini 里 upload_tmp_dir 设置一个全新的目录 也赋予Everyone 读写权限。

    上传文件的目标目录也赋予Everyone 读写权限。

三、直接上代码

1、文件curlTest.php:

<form action=" curlTest.php" enctype="multipart/form-data"  method="post">
  <p>UpLoad: <input type="file" name="file"  id="file"/></p>

  <input type="submit" value="Submit" />
</form>

<?php
upload();
/**
     * 上传图片api
     * 
     */
     function upload(){
        $result = array('code' => 0, 'message' => 'ok');
        ini_set('upload_max_filesize', '20M');
        ini_set('post_max_size', '20M');
        ini_set('memory_limit', '128M');
        //接收上传的远程地址
        $url = isset($_POST['url']) ? trim($_POST['url']) : '';
       
        $url ="www.123.com/k1/upload.php";
        if (empty($url)) {
            $result['code'] = 40001;
            $result['message'] = 'url不能为空';
            //Helper_Http::writeJson(200,$result);
        }
        $file = $_FILES['file'];
        print_r($_FILES);
        if ($file['error'] != 0) {
            $result['code'] = 40001;
            $result['message'] = '上传出错';
            //Helper_Http::writeJson(200,$result);
            echo 1;
        } else {
            $filename = $file['name'];
            $tmpfile = $file['tmp_name'];
            $filetype = $file['type'];
            $data = upload_file($url, $filename, $tmpfile, $filetype);
            echo $data;
            print_r ($url);
            die;
        }
    }
     
    /**
     * curl上传文件
     * 
     * @param unknown $url
     * @param unknown $filename
     * @param unknown $path
     * @param unknown $type
     */
    function upload_file($url,$filename,$path,$type){
    	echo 3;
    	echo $path;
        //php 5.5以上的用法
        if (class_exists('\CURLFile')) {
            $data = array('file' => new \CURLFile(realpath($path),$type,$filename));
        } else {
            $data = array(
                'file'=>'@'.realpath($path).";type=".$type.";filename=".$filename
            );
        }
        echo 'data:';
        print_R($data);
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, true );
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_HEADER, false);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $return_data = curl_exec($ch);
        curl_close($ch);
        echo $return_data;
    }
?>

2、文件upload.php：

<?php 
 echo "<pre> ";

 print_r($_FILES);
 
 $uploaddir = 'D:/temp/caches/';
 $uploadfile = $uploaddir . basename($_FILES['file']['name']);
 
 echo '<pre>';
 if (move_uploaded_file($_FILES['file']['tmp_name'], $uploadfile)) {
 	echo "File is valid, and was successfully uploaded.\n";
 } else {
 	echo "Possible file upload attack!\n";
 }
 
 echo 'Here is some more debugging info:';
 ?>

http://my.oschina.net/forMemory/blog/374451

http://my.oschina.net/adamboy/blog/54436

http://bbs.csdn.net/topics/300018585

http://blog.csdn.net/cyuyan112233/article/details/21007163