来源:自学PHP网 时间:2014-12-25 09:57 作者: 阅读:次
[导读] 用PHP+MySql编写聊天室,大家好!好久没有看到大家了,上次写了用php的通过文件操作的聊天室,当然是漏洞百出的,而且每一次刷新屏幕都很糟糕的!我想了好久,是不是能有一种方法不...
大家好!好久没有看到大家了,上次写了用php的通过文件操作的聊天室,当然是漏洞百出的,而且每一次刷新屏幕都很糟糕的!我想了好久,是不是能有一种方法不要刷新,就能取得发言的信息了?多用一个框架就能实现这个效果了,即多用一个框架我们称为getmsg,我们让getmeg去取得信息而且保证每一次取得的信息是最新的,就是上次取得的发言就不要了,上次我编的就是每一次取得信息都是重复的,这样效果不好。
我的设计思想是:每一次发言,都把它提交到服务器上,然后保存到一个数据库里,每格几秒钟getmsg就去服务器上取得 最新发言数据,并保证上次取得的发言就不要取下来了,然后把取下来的发言叠加到一个专门显示发言的窗口(listmsg)去。这样我们就感觉listmsg窗口不会有重刷新的感觉而且,只是看到发言信息不断加进去,这样就有很好的效果, 怎样在一个框架把信息加到另个框架去了?用javaScript就可以实现这个想法的: <script language="Javascript"> <!-- var win=parent.frames[0] //第一个框架即在文档中第一次出现的<frame> var doc=win.document //获取文档 doc.write("发言信息")//这样就可以把信息加到另个frame里去了! --> </script> 当然你得在MySQL里建两个表,一个表用于保存发言信息,一个表用于保存几个在线的,在列在线人数时,我们让它每个60秒刷新一次,并把一分钟以前的发言删掉,并看某个发言人是不是很长时间没发言了,是的话,就删掉他, 由于表的子段很简单,在这里就不要写出来了,看程序就会知道了。这个程序在网上网下测试的效果都很好! 表的名字是:chat和chat_getmsg <!--主框架chat.php--> <?PHP if(!isset($username)) $username="guest"; $conid=mysql_connect("localhost","yourcounter","passWord"); mysql_select_db("yourdadabase",$conid); $dstr=date("YmdHis"); $sql="insert chat_getmsg (username,shijian) values ('$username','$dstr')"; mysql_query($sql,$conid); $sql="update chat_getmsg set shijian='$dstr' where username='$username'"; mysql_query($sql,$conid); mysql_close($conid); ?> <html> <head> <title>Untitled Document</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> </head> <frameset rows="283,105" frameborder="YES" border="1" framespacing="0" cols="*"> <frameset cols="520,113" frameborder="yes" border="1" framespacing="0" rows="*"> <frame name="topFrame" scrolling="auto" border="1" noresize src="list.html" > <frame name="rightFrame" scrolling="auto" border="1" noresize src="username.php"> </frameset> <frameset rows="17,90" frameborder="yes" border="1" framespacing="0" cols="*"> <?PHP echo "<frame name="topFrame1" scrolling="NO" border="1" noresize src="getmsg1.php?username=$username">n"; ?> <?PHP echo "<frame name="bottomFrame" scrolling="NO" border="1" noresize src="fayan.php?username=$username">n"; ?> </frameset> </frameset> <noframes><body bgcolor="#FFFFFF"> </body></noframes> </html> <!--发言fayan.php --> <?php if(!isset($username)) $username="guest"; if(!isset($yanse)) $yanse="blue"; if(!isset($objectname)) $objectname="大家"; ?> <html> <head> <title>Untitled Document</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <style type="text/CSS"> <!-- .normalfont { font-family: "宋体"; font-size: 10pt; font-weight: 800; color: #99FF33; height: auto; width: auto; left: 0px; top: 0px; clip: rect( )} --> </style> </head> <body bgcolor="#ff3333"> <form method="post" name="fayanform" action=<?PHP echo ""fayan.php?username=$username&yanse=$yanse&objectname=$objectname "";?> class="normalfont"> <table width="100%" border="0" cellspacing="0" cellpadding="0" class="normalfont"> <tr> <td width="17%" height="22"> 颜色: <select id=yanse name="yanse"> <option value="blue" <?PHP if($yanse=="blue") echo "SELECTED";?> >Blue <option value="red" <?PHP if($yanse=="red") echo "SELECTED";?> >red <option value="green" <?PHP if($yanse=="green") echo "SELECTED";?> >green <option value="yellow" <?PHP if($yanse=="yellow") echo "SELECTED";?> >yellow <option value="brown" <?PHP if($yanse=="brown") echo "SELECTED";?> >brown <option value="#ff00ff" <?PHP if($yanse=="#ff00ff") echo "SELECTED";?> >ff00ff <option value="#bb00ff" <?PHP if($yanse=="#bb00ff") echo "SELECTED";?> >bb00ff <option value="#cc00ff" <?PHP if($yanse=="#cc00ff") echo "SELECTED";?> >cc00ff <option value="#aa00ff" <?PHP if($yanse=="#aa00ff") echo "SELECTED";?> >aa00ff <option value="#6600ff" <?PHP if($yanse=="#6600ff") echo "SELECTED";?> >6600ff <option value="#7700ff" <?PHP if($yanse=="#7700ff") echo "SELECTED";?> >7700ff <option value="#1100ff" <?PHP if($yanse=="#1100ff") echo "SELECTED";?> >1100ff <option value="#11ffff" <?PHP if($yanse=="#11ffff") echo "SELECTED";?> >11ffff <option value="#11aaff" <?PHP if($yanse=="#11aaff") echo "SELECTED";?> >11aaff <option value="#1199ff" <?PHP if($yanse=="#1199ff") echo "SELECTED";?> >1199ff <option value="#1133ff" <?PHP if($yanse=="#1133ff") echo "SELECTED";?> >1133ff </select> </td> <td width="55%" height="22" class="normalfont">发言: <input type="text" name="fayan" size=35 > <input type="hidden" name="username" value=<?PHP echo ""$username""; ?> > <input type="Button" name="Button" value="发言" onclick="submitfayan()"> </td> <td width="28%" height="22"> </td> </tr> <tr> <td width="17%" height="20">对象: <input type="text" name="objectname" size=10 value=<?PHP echo ""$objectname"";?> > </td> <td width="55%" height="20" class="normalfont"><a href="http://chenlipan.oso.com.cn">回去</a> </td> <td width="28%" height="20" class="normalfont" > </td> </tr> </table> </form> </body> <Script language="JavaScript"> <!-- fayanform.fayan.focus() function submitfayan() { if(fayanform.fayan.value!="") fayanform.submit() else alert("不能发空信息") fayanform.fayan.focus() } --> </script> </html> <?PHP if(isset($username)&&isset($fayan)){ $conid=mysql_connect("localhost","yourcount","yourpassword"); mysql_select_db("database",$conid); $sql="insert chat (username,objectname,action,msg,color) values ("$username","$objectname","NO","$fayan","$yanse")"; mysql_query($sql,$conid); mysql_close($conid); } ?> <!--获取发言信息getmsg.php--> <html> <head> <title>Untitled Document</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <?PHP $conid=mysql_pconnect("localhost","yourcount","password"); mysql_select_db("database",$conid); if(!isset($username)) $username="getmsg"; $dt=time(); $newdate=date("YmdHis",$dt); $fromdate=date("YmdHis",$dt-6);; $sql="select username as name,msg,action,objectname ,shijian,color from chat where shijian>="$fromdate""; $res=mysql_query($sql,$conid); echo "<meta http-equiv="Refresh" content="6,url=getmsg.php?username=$username" >n"; echo "</head>n"; echo "<script language="JavaScript">n"; echo "<!--n"; echo "var win=parent.frames[0]n"; echo "var doc=win.documentn"; echo "var divlin=doc.body.all("lin")n"; while(list($name,$msg,$action,$objectname,$shijian,$color)=mysql_fetch_row($res)) { if($objectname!="大家"||$objectname) $object="对 <a href=JavaScript:selectusername('$objectname')>$objectname</a> "; echo "divlin.innerHTML=divlin.innerHTML+"<font color=$color size=3><a href=JavaScript:selectusername('$name')>$name</a> $object 说: $msg </font><br>"n"; } echo "win.scrollBy(6000,6000)n"; echo "-->n"; echo "</script>n"; ?> <body bgcolor="#333333"> </body> </html> <!--欢迎词getmsg1.php --> <html> <head> <title>Untitled Document</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <?PHP if(!isset($username)) $username="guest"; echo "<meta http-equiv="Refresh" content="6;url=getmsg.php?username=$username" >n"; echo "</head>n"; echo "<script language="JavaScript">n"; echo "<!--hiden"; echo "var win=parent.frames[0]n"; echo "var doc=win.documentn"; echo "var divlin=doc.body.all("lin")n"; echo "divlin.innerHTML= "<font color=blue><b>欢迎 $username 的光临</b></font><br>"n"; echo "-->n"; echo "</script>n"; ?> <body bgcolor="#333333"> </body> </html> <!--显示发言list.html--> <html> <head> <title>Untitled Document</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <style type="text/css"> <!-- .lin { font-size: 10pt; color: #FF6633} --> </style> </head> <body bgcolor="#FFFFFF" > <center> <div color=blue> <font color=white size=6><b> 欢迎光临</b> </marquee> </div> </center> <div id=lin class="lin"></div> </body> <Script language="JavaScript"> <!-- function selectusername(str) { var win=parent.frames[3] var doc=win.document var form1=doc.body.all("fayanform") form1.objectname.value=str } --> </script> </html> <!--罗列在线人数--> <html> <head> <title>Untitled Document</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <meta http-equiv="Refresh" content="60"> <style type="text/css"> <!-- .lin { font-size: 10pt; color: #ff0066} --> </style> </head> <body bgcolor="#33ff00" > <center class="lin"><b> 在线人数 </b> <hr> <?PHP if(!isset($username)) $username="guest"; $dt=time(); $newdate=date("YmdHis",$dt); $fromdate=date("YmdHis",$dt-200); $linkid=mysql_connect("localhost","yourcount","password"); mysql_select_db("yourdatabase",$linkid); $sql="update chat_getmsg set shijian="$newdate" where username="$username""; mysql_query($sql,$linkid); $sql="select username from chat_getmsg where shijian>="$fromdate""; $res=mysql_query($sql,$linkid); while(list($username)=mysql_fetch_row($res)){ echo "<a href="JavaScript:selectusername('$username')">$username</a><br>n"; $fromdate=date("YmdHis",$dt-100); $sql="delete from chat where shijian<="$fromdate""; mysql_query($sql,$linkid); mysql_close($linkid); } ?> </center> <Script language="JavaScript"> <!-- function selectusername(str) { var win=parent.frames[3] var doc=win.document var form1=doc.body.all("fayanform") form1.objectname.value=str } --> </script> </body> </html> 【本文版权归作者与奥索网共同拥有,如需转载,请注明作者及出处】 |
自学PHP网专注网站建设学习,PHP程序学习,平面设计学习,以及操作系统学习
京ICP备14009008号-1@版权所有www.zixuephp.com
网站声明:本站所有视频,教程都由网友上传,站长收集和分享给大家学习使用,如由牵扯版权问题请联系站长邮箱904561283@qq.com