PHP的bbs实现之五--创建调查2

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//survey.php

<?
include "common.inc.php";

if(!$Ok)
{
global $PHP_SELF;

$survey_check = "select * from survey where title='$title'";
$check_result = mysql_query($survey_check)
or die("无法进行网上调查。");

$check_num = mysql_num_rows($check_result);
if ($check_num == 0)
{
header("Location: login_error.php?error=没有找到该调查项目！/n");
}

$check_result = mysql_query($survey_check) ;
$row=mysql_fetch_array($check_result);

$number=$row["totalfield"];
$option1=$row["option1"];
$option2=$row["option2"];
if ($number>2)
{
$option3=$row["option3"];
}
if ($number==4)
{
$option4=$row["option4"];
}

$next_action=$PHP_SELF;
$next_action.='?title='.$title;

include "header.inc.php";
include "ad.php";
}
else
{
$survey_check = "select * from survey where title='$title'";
$check_result = mysql_query($survey_check)
or die("无法进行网上调查。");

$choice_now="choice".$choice;
$row=mysql_fetch_array($check_result);
$new_value=$row[$choice_now] ;
$new_value++;

$SQL="UPDATE survey SET $choice_now='$new_value'
where title='$title'";
mysql_query($SQL) or die(mysql_error());
header("Location: survey_view.php?title=$title");
}
?>

<body background="images/st.jpg" >

<FORM METHOD="POST" ACTION="<? echo $next_action;?>">
<TABLE width=60% border=0 align=center bgcolor=yellow>
<TR bgcolor=green>
<TD height=20 align=center>
<FONT class=myYellow>
欢迎来到网上调查！
</FONT>
</TD>
</TR>
<TR >
<TD height=50 align=left>
<font size=3 color=blue >
<?
for ($i=1;$i<10;$i++)
echo "&nbsp";
echo $title;?>
</font>
</TD>
</TR>
<?
$n=1;
while ($n<=$number)
{
$option_now="option".$n;

echo "<TR>";
echo "<td width=/"50%/" align=left class=myRed>";
for ($i=1;$i<15;$i++)
echo "&nbsp";
echo "<input type=/"radio/" name=/"choice/" value=".$n;
if ($n==1)
{
echo " checked";
}
echo ">";
echo $$option_now;
echo " </td>";
echo " </TR>";
$n++;
}
?>
<TR>
<TD height=20 align=center>
<INPUT type=submit name=Ok value=" 提交 " class=myBlack> 　　　　　　　　　　　
</TD>
</TR>

</TABLE>
</FORM>

<DIV class=myGreen align=center>
<? echo $COPYRIGHT; ?>
</DIV>

</BODY>