curl上传图片(同域上传)

先研究完curl同域上传图片然后再研究curl跨域上传，先把同域上传代码总结如下：

index.php

<?php
//图片上传
$url = "http://192.168.1.230/curl/receive.php";
$post_data = array (
    "foo" => "bar",
    // 要上传的本地文件地址;从php5.5.0开始弃用@方式，改用new CURLFile()方式
    "upload" => new CURLFile("D:/workspace/xlyy/curl/img/1.png"),//路径必须是磁盘的绝对路径
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
$output = curl_exec($ch);
curl_close($ch);

echo '<pre>';
print_r(json_decode($output,true));
echo '</pre>';

receive.php

<?php
if($_FILES){
    $filename = $_FILES['upload']['name'];
    $tmpname = $_FILES['upload']['tmp_name'];
    if(move_uploaded_file($tmpname,dirname(__FILE__).'/upload/'.$filename)){
        echo json_encode('上传成功',JSON_UNESCAPED_UNICODE);
    }else{
        echo json_encode('上传失败',JSON_UNESCAPED_UNICODE); } } ?>

注意：php5.5.0开始弃用@方式，改用new CURLFile()方式