PHP简易在线即时聊天系统源码

使用方法

$(document).ready(function(){
});
$(document).ready(function(){
    $("#exit").click(function(){
        var exit = confirm("你确定要退出吗?");
        if(exit==true){window.location = 'index.php?logout=true';}     
    });
});
$("#submitmsg").click(function(){
        var clientmsg = $("#usermsg").val();
        $.post("post.php", {text: clientmsg});             
        $("#usermsg").attr("value", "");
        loadLog;
    return false;
});
function loadLog(){    
    var oldscrollHeight = $("#chatbox").attr("scrollHeight") - 20;
    $.ajax({
        url: "log.html",
        cache: false,
        success: function(html){       
            $("#chatbox").html(html);       
            var newscrollHeight = $("#chatbox").attr("scrollHeight") - 20;
            if(newscrollHeight > oldscrollHeight){
                $("#chatbox").animate({ scrollTop: newscrollHeight }, 'normal');
            }              
        },
    });
}
setInterval (loadLog, 2500);