在PHP中如何实现象MSN一样的消息提示?

Question

前台使用一个页面定时"刷新"取数据,如果有更新则用DHTML来实现层的变化
可以使用XMLHTTP或隐藏的IFRAME来做到

Answer 1

用javascript实现
<script language="javascript">
var oPopup = window.createPopup();
var popTop=50;
function popmsg(titlestr, msgstr){
var winstr="<table width=\"255\" height=\"159\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" background=\"images/popbg.gif\">";
winstr+="<tr><td> </td></tr><tr><td align=\"center\"><table width=\"90%\" height=\"159\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">";
winstr+="<tr height=\"30\"><td style=\"font-size:12px;\" align=\"center\"><b style=\"color:red\">"+titlestr+"</b></td></tr>";
winstr+="<tr><td style=\"font-size:12px;\">"+msgstr+"</td></tr></table></td></tr></table>";
oPopup.document.body.innerHTML = winstr;
popshow();
}
function popshow(){
if(popTop>1620){
clearTimeout(mytime);
oPopup.hide();
return;
}else if(popTop<160){
oPopup.show(screen.width-255,screen.height,255,popTop);
}else if(popTop<220){
oPopup.show(screen.width-255,screen.height-popTop,255,159);
}
popTop+=10;
var mytime=setTimeout("popshow();",60);
}
popmsg("uGain", "<center>做你该做的事！<br>做你能做的事！<br>做你想做的事！<br>Do Things U SHOULD!<br>Do Things U CAN!&nbsp;&nbsp;&nbsp;<br>Do Things U WANT!&nbsp;&nbsp;<br><br></center>");
</script>演示 http://www.ugain.org/

Answer 2

//主页面上用iframe
<iframe frameborder="0" height="0" width="0" scrolling="NO" border="0" framespacing="0" marginwidth="2" marginheight="5" src="refresh.php" allowTransparency="true"></iframe>//refresh.php
<?php
echo '<meta http-equiv="refresh" content="3;url='.$PHP_SELF.'">';
$sql="....";
if(...) echo '<script language="javascript">popmsg(.......)</script>';
?>

Answer 3

转贴一个：http://www.blueidea.com/tech/web/2004/1660.asp
<SCRIPT>
var oPopup = window.createPopup();
var popTop=50;
function popmsg(msgstr){
var winstr="<table style=\"border: 1 solid  #FFA6CA\"  width=\"241\" height=\"172\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"  background=\"http://www.blueidea.com/articleimg/2004/01/1576/04-s.jpg\" >";
winstr+="<tr><td height=\"30\"> </td></tr><tr><td align=\"center\"><table width=\"90%\" height=\"110\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">";
winstr+="<tr><td valign=\"top\" style=\"font-size:12px; color: red; face: Tahoma\">"+msgstr+"</td></tr></table></td></tr></table>";
oPopup.document.body.innerHTML = winstr;
popshow();
}
function popshow(){
window.status=popTop;
if(popTop>1720){
clearTimeout(mytime);
oPopup.hide();
return;
}else if(popTop>1520&&popTop<1720){
oPopup.show(screen.width-250,screen.height,241,1720-popTop);
}else if(popTop>1500&&popTop<1520){
oPopup.show(screen.width-250,screen.height+(popTop-1720),241,172);
}else if(popTop<180){
oPopup.show(screen.width-250,screen.height,241,popTop);
}else if(popTop<220){
oPopup.show(screen.width-250,screen.height-popTop,241,172);
}
popTop+=10;
var mytime=setTimeout("popshow();",50);
}
popmsg("    <img border=\"0\" src=\"http://www.blueidea.com/img/common/logo.gif\" width=\"90\" height=\"27\">欢迎光临蓝色理想，大量的设计资源等着你!有什么问题可以到经典论坛提出。");
</SCRIPT>