PHP微信公众号开发--上传素材
制作文件上传的表单html<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>上传素材</title></head><body><form action="post.php" method="post" enctype="multipart/form-data"><p>素材类型:<select name="is_forever"><option value="0">临时</option><option value="1">永久</option></select><input type="file" name="media" id=""><input type="submit" value="提交素材"></p></form></body></html>
图片上传到微信服务器的接口编写
public function getAccessToken(){$mem = new Memcache();$mem->connect('127.0.0.1', 11211);$men_name = 'auth_'.self::APPID;$value = $mem->get($men_name);if ($value){return $value;}$wechat_url = 'https://api./cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s';$wechat_url = sprintf($wechat_url, self::APPID, self::APPSECRET);$json_data = $this->http_request($wechat_url);$arr = json_decode($json_data, True);$access_token = $arr['access_token'];$mem->add($men_name, $access_token, 0, 7200);return $access_token;}private function http_request_post($url, $data, $file=''){if(!empty($file)){$data['media'] = new CURLFile($file);}$curl = curl_init();curl_setopt($curl, CURLOPT_URL, $url);curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);curl_setopt($curl, CURLOPT_SSL_VERIFYHOST,FALSE);curl_setopt($curl, CURLOPT_POST, 1);curl_setopt($curl, CURLOPT_POSTFIELDS, $data);curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);$output = curl_exec($curl);//判断有无出错if (curl_errno($curl) > 0){echo curl_error($curl);$output = 'http请求出错！'.'['.curl_error($curl).']';}curl_close($curl);return $output;}public function uploadMaterial(string $path, string $type,$is_forever = 0){// 0为临时素材，1为永久素材！if ($is_forever == 0){$upload_url = 'https://api./cgi-bin/media/upload?access_token=%s&type=%s';}else{$upload_url = 'https://api./cgi-bin/material/add_material?access_token=%s&type=%s';}$url = sprintf($upload_url, $this->getAccessToken(), $type);// 访问微信接口上传素材$json = $this->http_request_post($url, [], $path);// json转为数组$arr = json_decode($json, true);return $arr['media_id'];}
接收表单数据，实现素材上传到自己服务器。
include './index.php';$files = $_FILES['media'];// 得到扩展名$extname = pathinfo($files['name'], PATHINFO_EXTENSION);// 上传后的文件名$name = time().'.'.$extname;//上传到服务器的路径$realpath = __DIR__.'/uploads/'.$name;move_uploaded_file($files['tmp_name'], $realpath);$wx = new WechatTest();echo $wx->uploadMaterial($realpath, 'image', $_POST['is_forever']);
得到media_id
修改被动回复消息接口，测试素材是否上传成功
//接收消息private function acceptMsg(){$xml = file_get_contents('php://input');# 把xml转换为object对象来处理$obj = simplexml_load_string($xml,'SimpleXMLElement',LIBXML_NOCDATA);// 写日志$this->writeLog($xml, 1);$msgType = $obj->MsgType;$fun = $msgType.'Fun';echo $ret = $this->$fun($obj);// 写发送日志$this->writeLog($ret,2);}// 处理文本消息private function textFun($obj){$content = $obj->Content;if ($content == '图片素材'){return $this->createImage($obj, '0JYo9-5eoRTtAbhckWX5-eFQgavkz7Yow4zlXkw4NmLwl-H0olDArdVqdesh9A_z');}$content = '公众号回复你：'.$content;return $this->createText($obj, $content);}//创建图片回复消息private function createImage($obj, $mediaid){$xml = '<xml><ToUserName><![CDATA[%s]]></ToUserName><FromUserName><![CDATA[%s]]></FromUserName><CreateTime>%s</CreateTime><MsgType><![CDATA[image]]></MsgType><Image><MediaId><![CDATA[%s]]></MediaId></Image></xml>';// 如果有mediaidif($mediaid){$str = sprintf($xml, $obj->FromUserName, $obj->ToUserName, time(), $mediaid);}else{$str = sprintf($xml, $obj->FromUserName, $obj->ToUserName, time(), $obj->MediaId);}return $str;}
测试结果如下：
