微信上传临时素材（图片）

/上传临时图片 $img为通过post表单提交过来的图片资源/
function uploadTmpImg($img)
{
$access_token = cacheToken();
$url="https://api.weixin.qq.com/cgi-bin/media/upload?access_token={$access_token}&type=image";
$cfile = curl_file_create($img['tmp_name'],$img['type'],$img['name']);
$data= array("media"=>$cfile);
$url = new Mycurl($url);
$result = $url->http_url($data);
$res = json_decode($result, true);
var_dump($res);
}
$img = $_FILES['img'];
uploadTmpImg($img);

/curl类/

class Mycurl
{
private $url;

function __construct($url)
{
	$this->url = $url;
}

//模拟发送get请求
function get()
{
	//初始一个curl
	$curl = curl_init();
	//配置curl的参数
	curl_setopt($curl, CURLOPT_URL, $this->url);
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($curl, CURLOPT_TIMEOUT, 10);
	//执行一个curl
	$content = curl_exec($curl);
	//关闭会话
	curl_close($curl);

	//将该url地址请求的结果返回给你
	return $content;
}

//模拟发送post请求
function post($data)
{
	$curl = curl_init();

	curl_setopt($curl, CURLOPT_URL, $this->url);
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($curl, CURLOPT_TIMEOUT, 10);

	//是否是post请求
	curl_setopt($curl, CURLOPT_POST, true);
	//post请求所带的数据是什么
	curl_setopt($curl, CURLOPT_POSTFIELDS, $data);

	$content = curl_exec($curl);

	curl_close($curl);

	return $content;
}

    //差不多结合get post
function http_url($data = null){
	//$data = http_build_query($data);
	$curl = curl_init();
	curl_setopt($curl, CURLOPT_URL, $this->url);
	curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
	curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
	if (!empty($data)){
		curl_setopt($curl, CURLOPT_POST, 1);
		curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
	}
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
	$output = curl_exec($curl);
	curl_close($curl);
	return $output;
}

}