cURL转发文件上传.php

<?php
$uploadUrl = 'http://test.com/upload.php';

// 转发从其它客户端上传的文件，name="file"
upload_file($uploadUrl, realpath($_FILES['file']['tmp_name']), $_FILES['file']['type'], $_FILES['file']['name']);

/**
 * curl上传文件
 */
function upload_file($url, $path, $type, $filename){
    $data = array(
        'adviceimg'=>'@'.$path.';type='.$type.';filename='.$filename,
    );
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, true );
    curl_setopt($ch, CURLOPT_SAFE_UPLOAD, false);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $return_data = curl_exec($ch);
    curl_close($ch);
    echo $return_data;
}