ajax php 實現寫入資料庫

最後更新：2018-12-08 來源：互聯網

上載者：User

創建阿里雲帳戶，並獲得超過 40 款產品的免費試用版；而企業帳戶則可以享有總值 $1200 的免費試用版。立即註冊！

首先需要一個帶輸入表格. 複製代碼代碼如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script src="submit.js" language="javascript"></script>
</head>
<body>
Insert 知識點
<form name="insertForm">
<label for="question"></label>知識點
<input name="question" type="text"/>
<br/><br/>
<label for="answer"> 答案</label>
<input name="answer" type="text"/>
<br/>
<br/>
<input name="confirm" value="添加" type="button" onclick="getValue();">
</form>
</body>
</html>

需要js來處理提交資料到伺服器上以及從伺服器擷取提交後的返回資料. submit.js代碼如: 複製代碼代碼如下:/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
var xmlHttp;
function getValue(){
alert("getvaluel");
var question =document.insertForm.question.value;
// alert(question);
var answer = document.insertForm.answer.value;
// alert(answer);
submit(question,answer);
};
function submit(question,answer){
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
{
alert ("Your browser does not support AJAX!");
return;
}
xmlHttp.onreadystatechange =function(){
if(xmlHttp.readyState ==4){
alert(xmlHttp.responseText);
}
};
var url = "insert1.php";
xmlHttp.open("post",url,true);
xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=utf-8");
xmlHttp.send("question="+question+"&answer="+answer);

}
function GetXmlHttpObject()
{
var xmlHttp=null;
try
{
// Firefox, Opera 8.0+, Safari
xmlHttp=new XMLHttpRequest();
}
catch (e)
{
// Internet Explorer
try
{
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e)
{
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
}
return xmlHttp;
}

然後PHP處理介面,負責跟伺服器交換資料複製代碼代碼如下:<?php
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
//echo $_POST["question"];
//echo $_POST["answer"];
$q =$_POST['question'];
$a = $_POST['answer'];
//$q='qq';
//$a="a";
$con = mysql_connect("localhost","joe","123");
if (!$con)
{
//die('Could not connect: ' . mysql_error());
echo 'Could not connect: ' . mysql_error();
}
mysql_select_db("joe",$con);
mysql_query("INSERT INTO message VALUES ('$q', '$a', '無')");
mysql_close($con);
echo "輸入成功";
?>

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

Sales Support

1 on 1 presale consultation

Chat Contact Sales
After-Sales Support

24/7 Technical Support 6 Free Tickets per Quarter Faster Response

Open a Ticket
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

Learn More