php 小程序获取渠道二维码 保存

function ppost($url,$arr){
$post_data = json_encode($arr);
$url=$url;
$ch = curl_init();
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);//这里也是那个是否接收返回值的设置 curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // https请求 不验证证书和hosts
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
$result = curl_exec($ch);
curl_close($ch);
return $result;
}
//将二进制以图片存入硬盘
function toimg($aa,$path,$filename){
//将二进制转为图片
$imgDir = $path;
$filename=$filename;///要生成的图片名字 $xmlstr = $aa;
if(empty($xmlstr)) {
$xmlstr = file_get_contents('php://input');
} $jpg = $xmlstr;//得到post过来的二进制原始数据
if(empty($jpg))
{
echo 'nostream';
exit();
} $file = fopen("./".$imgDir."/".$filename,"w");//打开文件准备写入
fwrite($file,$jpg);//写入
fclose($file);//关闭 $filePath = './'.$imgDir."/".$filename; //图片是否存在
if(!file_exists($filePath))
{
echo 'createFail'."---".$filePath;
exit();
}
}
$url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=TOKEN";
$data['scene'] = "666"; //二维码参数
$data['width'] = "100";
//$data['page'] = "pages/index/index";
$aa = ppost($url,$data);
toimg($aa,'Public/tk_qrcode',time().".jpg");