About_AJAX_03

以为AJAX只可以获取一个值呢,原来也是可以拼接的:

 

function sendTopic(){
    if(window.ActiveXObject){
        xmlHttp = new ActiveXObject("MICROSOFT.XMLHTTP");
    }else if(window.XMLHttpRequest){
        xmlHttp = new XMLHttpRequest();
    }
    var user = document.getElementById("user").value;//得到id
    var content = document.getElementById("content").value;
    var title = document.getElementById("title").value;

    xmlHttp.open("GET","save.php?title="+title+"&content="+content+"&user="+user,true);

    xmlHttp.onreadystatechange = function(){
        if(xmlHttp.readyState == 4){
            if(xmlHttp.status == 200){
                var str = xmlHttp.responseText;
                var newTopic = document.getElementById("newTopic");
                newTopic.innerHTML += str + "<br/>";
            }
        }
    }

    xmlHttp.send(null);
}

 

mysql_fetch_array和mysql_fetch_row的区别是:

mysql_fetch_array属性和序号一起显示;

mysql_fetch_row显示序号,相当于键值对,返回一行数据;

eg:

加入SQL是:

$sql="select abc,def from a";

$res=mysql_query($sql);

那么:$row=mysql_fetch_row($res);

$row结果是两个:$row[0]和$row[1]

那么:$row=mysql_fetch_array($res);

$row结果是4个:$row[0]、$row[1]、$row["abc"]和$row["def"]

posted @ 2014-05-09 22:41  moemiss  阅读(188)  评论(0编辑  收藏  举报