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用PHP+MySql編寫聊天室

瀏覽：115日期：2024-01-02 13:45:20

大家好！好久沒有看到大家了，上次寫了用PHP的通過文件操作的聊天室，當(dāng)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，是不是能有一種方法不要刷新，就能取得發(fā)言的信息了？多用一個(gè)框架就能實(shí)現(xiàn)這個(gè)效果了，即多用一個(gè)框架我們稱為getmsg，我們讓getmeg去取得信息而且保證每一次取得的信息是最新的，就是上次取得的發(fā)言就不要了，上次我編的就是每一次取得信息都是重復(fù)的，這樣效果不好。 ;;;;;我的設(shè)計(jì)思想是：每一次發(fā)言，都把它提交到服務(wù)器上，然后保存到一個(gè)數(shù)據(jù)庫里，每格幾秒鐘getmsg就去服務(wù)器上取得最新發(fā)言數(shù)據(jù)，并保證上次取得的發(fā)言就不要取下來了，然后把取下來的發(fā)言疊加到一個(gè)專門顯示發(fā)言的窗口(listmsg)去。這樣我們就感覺listmsg窗口不會(huì)有重刷新的感覺而且，只是看到發(fā)言信息不斷加進(jìn)去，這樣就有很好的效果，怎樣在一個(gè)框架把信息加到另個(gè)框架去了？用JavaScript就可以實(shí)現(xiàn)這個(gè)想法的： <script language="JavaScript">  </script> 當(dāng)然你得在mysql里建兩個(gè)表，一個(gè)表用于保存發(fā)言信息，一個(gè)表用于保存幾個(gè)在線的，在列在線人數(shù)時(shí)，我們讓它每個(gè)60秒刷新一次，并把一分鐘以前的發(fā)言刪掉，并看某個(gè)發(fā)言人是不是很長時(shí)間沒發(fā)言了，是的話，就刪掉他，由于表的子段很簡單，在這里就不要寫出來了，看程序就會(huì)知道了。這個(gè)程序在網(wǎng)上網(wǎng)下測(cè)試的效果都很好！表的名字是:chat和chat_getmsg  <?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>  <?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">  </style> </head> <body bgcolor="#ff3333"> <form method="post" name="fayanform" action=<?PHP echo ""fayan.php?username=$username&yanse=$yanse&objectname=$objectname "";?> class="normalfont"> ;;<table width="100%" border="0" cellspacing="0" cellpadding="0" class="normalfont"> ;;;;<tr>;;;;;;;;<td width="17%";;height="22"> 顏色:;;<select id=yanse name="yanse"> ;;<option value="blue" <?PHP if($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($yanse=="#1133ff") echo "SELECTED";?> >1133ff </select> ;;;;;;</td> ;;;;;;<td width="55%";;height="22" class="normalfont">發(fā)言:;;<input type="text" name="fayan" size=35 > <input type="hidden" name="username" value=<?PHP echo ""$username""?> > ;<input type="Button" name="Button" value="發(fā)言" onclick="submitfayan()"> ;;;;;;</td> ;;;;;;<td width="28%";;height="22"> </td> ;;;;</tr> ;;;;<tr>;;;;;;;;<td width="17%" height="20">對(duì)象: <input type="text" name="objectname" size=10 value=<?PHP echo ""$objectname"";?> > ;;;;;;</td> ;;;;;;<td width="55%";;height="20" class="normalfont"><a >回去</a> </td> ;;;;;;<td width="28%" height="20" class="normalfont" > </td> ;;;;</tr> ;;</table> </form> </body> <Script language="JavaScript">  </script> </html> <?PHP if(isset($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); } ?>  <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 "</script>n"?> <body bgcolor="#333333"> </body> </html>  <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=$username" >n"echo "</head>n"echo "<script language="JavaScript">n"echo "n"echo "</script>n"?> <body bgcolor="#333333"> </body> </html>  <html> <head> <title>Untitled Document</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <style type="text/css">  </style> </head> <body bgcolor="#FFFFFF" > <center> <div color=blue> <font color=white size=6><b> 歡迎光臨</b> </marquee> </div> </center> <div id=lin class="lin"></div> </body> <Script language="JavaScript">  </script> </html>  <html> <head> <title>Untitled Document</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <meta http-equiv="Refresh" content="60"> <style type="text/css">  </style> </head> <body bgcolor="#33ff00" > <center class="lin"><b> ;;在線人數(shù) </b> <hr> <?PHP if(!isset($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">  </script> </body> </html> 【本文版權(quán)歸作者與奧索網(wǎng)共同擁有，如需轉(zhuǎn)載，請(qǐng)注明作者及出處】;;;;

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