The ajax no refresh function code mentioned in the previous section is as follows:

Required Introduce the jquery file

Remove the form and modify the message.php code:

       
Modify insertdb.php code as follows:
       
query($sql)) { //返回1表示添加成功 echo 1; } else{ //返回0表示添加失败 echo 0; }
       
This way the function is realized
       
1, use jquery to send ajax request
       


       
##Modify message.php code:
       
         
  
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Create a new messageshowdb.php file, the code is as follows:
       
query($sql); if($result->num_rows>0) { while ($row=$result->fetch_assoc()) { $arr[$row["id"]]["title"]=$row["title"];//$arr[1]["title"]=$row["title"] $arr[$row["id"]]["content"]=$row["content"];//$arr[1]["content"]=$arr["content"] } } echo json_encode($arr);
       

       
The effect is shown as follows: