如何使用ajax添加评论？ [英] How to add comments live using ajax?

问题描述

下面是一个用于在帖子中插入评论的PHP代码，现在工作正常我想添加ajax代码来实时添加评论（没有页面被刷新）。我更喜欢同一页面上的ajax代码和php代码，因为代码将携带用户的id，所以不希望通过ajax / js将这些数据发送到另一个页面。我不擅长编程试过几个ajax代码但是失败了所以如果有人可以帮助我使用ajax代码将会很感激。

 < span class =code-pagedirective><？php  
 if（isset（$ _ POST ['  submit']））{
 $ comment = strip_tags（$ _ POST [' 内容']）; 
  $ com  = $ db-> prepare（  INSERT INTO comments（评论，用户，用户，博客）VALUES（：comment，：userto，：userfrom，：blog））; 
 $ com->执行（数组（' ：comment' => $ comment ，' ：userto' => $ userid，'  ：userfrom' => $ uid，' ：博客' => $ blogId））; 
 
} 
 ？>  
 

< pre lang =HTML> < 表格 方法 =' 发布' < span class =code-attribute> name =' form' action = ' ' class < span class =code-keyword> =' commentbox2' >
< textarea 名称 =' content' id =' content' > < / textarea > < br / >
< 输入 类型 =' 提交' value =' 评论' name =' submit' class =' comment_button' / >
< / form >

解决方案

_POST [' submit']））{

comment = strip_tags（

_POST [' content']）;

Below is a php code for inserting comment to a post, It works fine now I want to add ajax code to add comments live (without page being refreshed). I prefer ajax code and php code on same page because code will be carrying id's of users so don't want to send such data to another page through ajax/js. I am not good at programming tried few ajax codes but failed so if anyone can help me with ajax code will be thankful.

<?php
   if(isset($_POST['submit'])) {
     $comment=strip_tags($_POST['content']);
     $com = $db->prepare("INSERT INTO comments (comment,userto, userfrom, blog) VALUES (:comment, :userto, :userfrom, :blog)");
     $com->execute(array(':comment'=>$comment,':userto'=>$userid,':userfrom'=>$uid,':blog'=>$blogId));

   }
?>

<form method='post' name='form' action='' class='commentbox2'>
<textarea  name='content' id='content'></textarea><br />
<input type='submit' value='Comment' name='submit' class='comment_button'/>
</form>

解决方案

_POST['submit'])) {

comment=strip_tags(

_POST['content']);

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