作为一个PHP开发人员,我有时被要求作个shoutbox 。 如果同样的事情也发生在你身上,这里有一个快速指南。显然,您要为它添加您自己的CSS在上面,但这里是基本思路。
我们需要一个MySQL数据库表和三个PHP文件。
首先,我们需要一个文件保存数据库信息
--- 文件 #1: mysql.inc.php ---
|
<?php |
创建一个有四个字段的数据表. 我们命名为shouts. 此前可能你没有这个SQL文件, 创建一个PHP文件"install.php". 这个文件用过一次之后,记得要删除它!
-- 文件 #2: install.php --
|
<?php $connection = @mysql_connect($host, $user, $password) or die(mysql_error()); |
这是主文件:
--- 文件 #3: index.php ---
| <? # Simply Shouting - a shoutbox example # File name: index.php # Description: Main page to display our shouts. //包含数据库信息 include_once("mysql.inc.php"); //连接数据库 $connection = @mysql_connect($host, $user, $password) or die(mysql_error()); $db = @mysql_select_db($name,$connection) or die(mysql_error()); ?> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"><style type="text/css"> <!-- body,td,th { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 12px; } --> </style><body> <div style="width:500px;height 400px; border:thin groove #519554;"> <? // 显示最新10条留言. 首先,初始化一个计数器 $counting = 0; // we need a counter because I want to show our shouts in ASC order // (like a chat room) $sql = mysql_query("SELECT * FROM `shouts`"); while($data = mysql_fetch_array($sql)){ //counts every row $counting = $counting + 1; } //end while // if the count comes back greater than 10, then we select the last // 10 shouts for display. if($counting > 10){ $countlessten = $counting - 9; $sql = mysql_query("SELECT * FROM `shouts` ORDER BY `shouts`.`id` ASC LIMIT $countlessten,10"); }else{ //else it doesn't matter, there's less than 10! $sql = mysql_query("SELECT * FROM `shouts` ORDER BY `shouts`.`id` ASC LIMIT 10"); } while($data = mysql_fetch_array($sql)){ //my timestamp field in the database is basically useless to me unless //I parse it. The following code parses the timestamp into things I //can use. $timestamp = $data['timestamp']; $postedyear=substr($timestamp,0,4); $postedmonth=substr($timestamp,5,2); $postedday=substr($timestamp,8,2); $postedtime=substr($timestamp,11,5); $newpostedtime = ""; $nomilitary=substr($postedtime,0,2); // the hour is greater than 12, so we need to switch back to 1-12 and // add a "pm" if($nomilitary >= 13){ $nomilitary = $nomilitary - 12 ; $newpostedtime = $nomilitary ; $newpostedtime .= ":" ; $newpostedtime .= substr($postedtime,3,2) ; $newpostedtime .= " pm"; } if($newpostedtime != ""){ $postedtime = $newpostedtime; }else{ $postedtime .= " am"; } //now that we have the time, let's get the shout and the shouter $shoutby = $data['shoutby']; $shout = $data['shout']; echo $postedmonth . "/" . $postedday . "/" . $postedyear . " at " . $postedtime ." - <strong>" . $shoutby . " said: </strong>" . $shout . "<br><br>"; // looks like: 12/1/2008 at 5:02pm - Josh said: Yo Yo Yo! } //below is the HTML form for creating the shouts ?> <form id="newshout" name="newshout" action="newshout.php" method="post"><input name="shoutby" type="text" id="shoutby" onClick="javascript:this.value=''" value="Enter your name here" size="24" maxlength="50" /> <br><br><input name="shout" type="text" id="shout" onClick="javascript:this.value=''" value="Click & Shout!" size="24" maxlength="50" /> <br><br><input id="submit" name="submit" type="submit" value="Shout!" /></form> </div> </body> </html> |
最后, 我们需要一个 PHP 文件处理表单.
-- 文件#4: newshout.php --
| <? # Simply Shouting - a shoutbox example # File name: newshout.php # Description: Process the HTML form on index.php and redirect. //得到留言者姓名 $shoutby = $_POST['shoutby']; if($shoutby == "Enter your name here"||$shoutby == ""){ //如果没有输入名字 $shoutby = "Visitor"; } if($_POST['shout']){ // 留言信息 if($_POST['shout'] != "Click & Shout!"){ //they didn't shout the default, so continue processing $shout = $_POST['shout']; //替换掉"<"和">"以阻止黑客 $shout = str_replace("<", " ", $shout); $shout = str_replace(">", " ", $shout); // 包含数据信息 include_once("dbaccess.php"); // 连接数据库 $connection = @mysql_connect($host, $user, $password) or die(mysql_error()); $db = @mysql_select_db($name,$connection) or die(mysql_error()); // 插入留言信息到数据库 $sql = "INSERT INTO `shouts`(`shoutby`,`shout`) VALUES('$shoutby','$shout')"; //关闭连接 $result = @mysql_query($sql,$connection); } } ?> <html> <head> </head> <body onLoad="window.open('index.php','_self')"> </body> </html> |












如何用PHP和mysql创建一个ShoutBox
翻译:

薄荷脑 榜眼 | Blog
请问什么是ShoutBox?...
09/03/2008