ajax.php：
<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Untitled Document</title></head><script language="javascript">function saveUserInfo(){//獲取接受返回信息層var msg = document.getElementByIdx_x("msg");//獲取表單對象和用戶信息值var f = document.user_info;var userName = f.user_name.value;var userAge = f.user_age.value;var userSex = f.user_sex.value;//接收表單的URL地址var url = "./ajax_output.php";//需要POST的值，把每個變量都通過&來聯(lián)接var postStr = "user_name="+ userName +"&user_age="+ userAge +"&user_sex="+ userSex;//實(shí)例化Ajax//var ajax = InitAjax(); var ajax = false; //開始初始化XMLHttpRequest對象 if(window.XMLHttpRequest) { //Mozilla 瀏覽器 ajax = new XMLHttpRequest(); if (ajax.overrideMimeType) {//設(shè)置MiME類別 ajax.overrideMimeType("text/xml"); } } else if (window.ActiveXObject) { // IE瀏覽器 try { ajax = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { ajax = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {} } } if (!ajax) { // 異常，創(chuàng)建對象實(shí)例失敗 window.alert("不能創(chuàng)建XMLHttpRequest對象實(shí)例."); return false; } //通過Post方式打開連接ajax.open("POST", url, true);//定義傳輸?shù)奈募﨟TTP頭信息ajax.setRequestHeader("Content-Type","application/x-www-form-urlencoded");//發(fā)送POST數(shù)據(jù)ajax.send(postStr);//獲取執(zhí)行狀態(tài)ajax.onreadystatechange = function() { //如果執(zhí)行狀態(tài)成功，那么就把返回信息寫到指定的層里 if (ajax.readyState == 4 && ajax.status == 200) { msg.innerHTML = ajax.responseText; }}alert (userName);}</script><body ><div id="msg"></div><form name="user_info" method="post" action="">姓名：<input type="text" id="user_name"name="user_name" /><br />年齡：<input type="text" name="user_age" /><br />性別：<input type="text" name="user_sex" /><br /><input type="button" value="提交表單" onClick="saveUserInfo()"></form></body>ajax_output.php：
<?php $username = $_POST['user_name']; $userage = $_POST['user_age']; $usersex = $_POST['user_sex']; echo "$username <br>"; echo "$userage <br>"; echo "$usersex <br>"; $db = new mysqli('localhost','root','123456','test'); if(!$db){ echo "連接失敗！"; } $db->query("set names utf8"); $query = "insert into userinfo(uname,uage,usex) values ('".$username."','".$userage."','".$usersex."')"; $result = $db->query($query); if ($result){ echo "上傳成功！"; } else { echo "失敗！"; } $db->close();?>以上這篇AJAX PHP無刷新form表單提交的簡單實(shí)現(xiàn)(推薦)就是小編分享給大家的全部內(nèi)容了，希望能給大家一個參考，也希望大家多多支持VeVb武林網(wǎng)。
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