日期：2010-01-08 11:39:00 来源：本站整理

PHP学习之新手上路（九）投票系统[网站编程]

赞助商链接

分享到： QQ空间新浪微博腾讯微博人人网

　　本文“PHP学习之新手上路（九）投票系统[网站编程]”是由七道奇为您精心收集，来源于网络转载，文章版权归文章作者所有，本站不对其观点以及内容做任何评价，请读者自行判断，以下是其具体内容：

8. 投票系统

在很多时刻,我们需求汇集上网者和网友们的看法.比方:新版页面与旧版页面的对比;对某一事情的见解;对体育比赛后果的猜测等等.这时刻,你需求一个非常有效的网上调查系统.利用PHP便可以非常便利地实帜愕恼庖还瓜搿?

8.1 投票系统（mypolls.php3）:

<?
$status=0;
if(isset($polled)&&($polled=="c-e")){
$status=1;
}
#echo "$status";
if(isset($poll)&&($status==0)){
setcookie("polled","c-e",time() 86400,"/");#time=24h
}
?>
<html>
<head>
<title>新版页面调查</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style type="text/css">

</style>
</head>
<body bgcolor="#FFFFFF">
<div class="head">与旧版页面相对比您认为新版页面:</div><br>
<?
if(!isset($submit)){
?>
<form action="myPolls.php3" method="get">
<input type="radio" name="poll_voteNr" value="1" checked >
<span class="pt9">信息量更大</span> <br>
<input type="radio" name="poll_voteNr" value="2" >
<span class="pt9">网页更风雅</span> <br>
<input type="radio" name="poll_voteNr" value="3" >
<span class="pt9">没什么改良</span> <br>
<input type="radio" name="poll_voteNr" value="4" >
<span class="pt9">别的</span> <br>
<input type="submit" name="submit" value="OK">
<input type="hidden" name="poll" value="vote">
<A HREF="myPolls.php3?submit=OK" class="p9">查看调查后果</A>
</form>
<?
/*
假如想增添别的的选项可直接加上便可
*/
}else{
$descArray=array(1=>"信息量更大",
2=>"网页更风雅",
3=>"没什么改良",
4=>"别的"
);
$poll_resultBarHeight = 9; // height in pixels of percentage bar in result table
$poll_resultBarScale = 1; // scale of result bar (in multiples of 100 pixels)
$poll_tableHeader="<table border=1 class="tb">";
$poll_rowHeader="<tr>";
$poll_dataHeader="<td align=center>";
$poll_dataFooter="</td>";
$poll_rowFooter="</tr>";
$poll_tableFooter="</table>";
$coutfile="data.pol";
$poll_sum=0;

// read counter-file
if (file_exists( $coutfile))
{
$fp = fopen( $coutfile, "rt");
while ($Line = fgets($fp, 10))
{
// split lines into identifier/counter
if (ereg( "([^ ]*) *([0-9]*)", $Line, $tmp))
{
$curArray[(int)$tmp[1]] = (int)$tmp[2];
$poll_sum =(int)$tmp[2];
}
}
// close file
fclose($fp);
}else{//
for ($i=1;$i<=count($descArray);$i ){
$curArray[$i]=0;
}
}
if(isset($poll)){
$curArray[$poll_voteNr] ;
$poll_sum ;
}
echo $poll_tableHeader;

// cycle through all options编历数组
reset($curArray);
while (list($K, $V) = each($curArray))
{
$poll_optionText = $descArray[$K];
$poll_optionCount = $V;
echo $poll_rowHeader;

if($poll_optionText != "")
{
echo $poll_dataHeader;
echo $poll_optionText;
echo $poll_dataFooter;

if($poll_sum)
$poll_percent = 100 * $poll_optionCount / $poll_sum;
else
$poll_percent = 0;
echo $poll_dataHeader;

if ($poll_percent > 0)
{
$poll_percentScale = (int)($poll_percent * $poll_resultBarScale);
}

printf(" %.2f %% (%d)", $poll_percent, $poll_optionCount);

echo $poll_dataFooter;
}

echo $poll_rowFooter;
}

echo "总共投票次数:<font color=red> $poll_sum</font>";
echo $poll_tableFooter;
echo "<br>";
echo "<input type="submit" name="Submit1" value="返回主页" onClick="javascript:location='http://gophp.heha.net/index.html'">";
echo " <input type="submit" name="Submit2" value="重新投票" onClick="javascript:location='http://gophp.heha.net/mypolls.php3'">";
if(isset($poll)){
// write counter file
$fp = fopen($coutfile, "wt");
reset($curArray);
while (list($Key, $Value) = each($curArray))
{
$tmp = sprintf( "%s %dn", $Key, $Value);
fwrite($fp, $tmp);
}
// close file
fclose($fp);
}
}
?>
</body>
</html>