微信小程序实现评论功能

<textarea class=\'the_prw_in\' bindinput=\'bindblur\' cursor-spacing=\"130\" placeholder=\'说点什么吧...\' maxlength=\"76\">
 </textarea>
<view class=\'the_prw_btn\' bindtap=\'btn_send\'>
 留言
</view>
 
<view>评论内容：</view>
 <block wx:for=\"{{pl_list}}\" wx:key=\"index\">
  <view class=\'the_msg\' wx:if=\'{{item.input_value!=null}}\'>
    <!-- <view class=\'msg_left\'>
  <view class=\'msg_avatar_v\'>
 <image class=\'msg_avatar\' src=\'{{msg_data.avatar}}\'></image>
 </view>
</view> -->
<view class=\'msg_right\'>
 <!-- <view class=\'msg_right_name\'>
   {{msg_data.nicename}}
 </view> -->
<view class=\'msg_right_text\'>
 <text>{{item.input_value}}</text>
  </view>
   <view class=\'gap\'>
   </view>
    </view>
   </view>
</block>

var bindblur ;
Page({
 bindblur:function(e){
 console.log(\'1111111:\', e.detail.value)
 bindblur = e.detail.value;
 },
 
  : function (a) {
 var that = this;
 actid = a.id;
 // 查询评论fetch
 wx.request({
 url: \'https://m.yishushe.net/addons/up_text.php\',
 method: \'POST\',
 header: {
 \'content-Type\': \'application/x-www-form-urlencoded\',
 \'Accept\': \'application/json\'
 },
 data: {
 act_id: actid
 },
 success: function (result) {
 that.setData({
  pl_list: result.data.reverse(),
 })
 },
 fail: res => {
 wx.showToast({
   : \'网络不好哟\',
  image: \'/image/wrong.png\',
  duration: 3000
 })
 }
 })
},
 btn_send: function () {
 var that = this
 //添加评论
 console.log(\'文章id：act_id :\', actid);
 console.log(\'用户缓存id：user_id :\', user_id);
 console.log(\'文本输入框: input_value :\', bindblur);
 wx.request({
 url: \'https://m.yishushe.net/addons/up_text.php\',
 method: \'POST\',
 header: {
 \'content-Type\': \'application/x-www-form-urlencoded\',
 \'Accept\': \'application/json\'
 },
 data: {
 act_id: actid,
 user_id: user_id,
 input_value: bindblur
 },
 success: function (result) {
 that.setData({
  pl_list: result.data.reverse(),
  input_value: \"\",
 })
 },
 fail: res => {
 wx.showToast({
   : \'网络不好哟\',
  image: \'/image/wrong.png\',
  duration: 3000
 })
 }
 })
 }
})

<?php
 header(\"Content-Type:text/html;charset=utf8\"); 
 header(\"Access-Control-Allow-Origin: *\"); //解决跨域
 header(\'Access-Control-Allow-Methods:POST\');// 响应类型 
 header(\'Access-Control-Allow-Headers:*\'); // 响应头设置 
 $ =mysql_connect(\"localhost\",\"root\",\"root\"); 
 mysql_select_db(\"weiqing\", $ ); //选择数据库
 mysql_query(\"SET NAMES utf8\");//解决中文乱码问题
 //$username = $_POST[\'username\'];
 //$avatarUrl = $_POST[\'avatarUrl\'];
 $act_id = $_POST[\'act_id\'];
 if($_POST[\'input_value\']){
 $user_id = $_POST[\'user_id\'];
 $input_value = $_POST[\'input_value\'];
 //echo $avatarUrl.\"----time:\". $time.\"----iv:\".$iv.\"----inputValue:\". $inputValue;
 //插入数据到数据库 
 $strsql = \"insert into pinglun (act_id,user_id,input_value) values(\'$act_id\',\'$user_id\',\'$input_value\')\";
 //mysql_query() 函数执行一条 MySQL 查询。SELECT，SHOW，EXPLAIN 或 DESCRIBE 都需要用这个函数执行
 $result = @mysql_query($strsql);
 
 }
 
 $q = \"SELECT * FROM pinglun\"; //SQL查询语句 SELECT * FROM 表名
 $rs = mysql_query($q); //获取数据集
 if(!$rs){die(\"数据库没有数据!\");}
 
 //循环读取数据并存入数组对象
 $dlogs;$i=0;
 while($row=mysql_fetch_array($rs))
 {
 if($act_id ==$row[\"act_id\"]){
 $dlog[\"act_id\"]=$row[\"act_id\"];
 $dlog[\"user_id\"]=$row[\"user_id\"];
 $dlog[\"input_value\"]=$row[\"input_value\"];
 }
 //$dlog[\"avatarUrl\"]=$row[\"avatarUrl\"];
 //$dlog[\"username\"]=$row[\"username\"];
 $dlogs[$i++]=$dlog;
 }
 
 
 //以json格式返回html页面
 
 echo urldecode(json_encode($dlogs));
?>