PHP

Hvordan skal en cookie se ud til dette afstemnings script (cookien skal gøre sådan at man kun kan stemme en gang) ?

<?

if ($action == \"poll\") {

if ($a == \"1\") {

include(\"include/db_ind.php\");

  $result = mysql_query(\"select resultat_1 from afstemning where id = \'$id\'\");

  $row    = mysql_fetch_array($result);
  $stemmer = $row[resultat_1];
  $stemmer_nu = $stemmer + 1;


mysql_query(\"update afstemning set resultat_1 = \'$stemmer_nu\' where id = \'$id\'\");
}

if ($a == \"2\") {

include(\"include/db_ind.php\");

  $result = mysql_query(\"select resultat_2 from afstemning where id = \'$id\'\");

  $row    = mysql_fetch_array($result);
  $stemmer = $row[resultat_2];
  $stemmer_nu = $stemmer + 1;


mysql_query(\"update afstemning set resultat_2 = \'$stemmer_nu\' where id = \'$id\'\");
}

if ($a == \"3\") {

include(\"include/db_ind.php\");

  $result = mysql_query(\"select resultat_3 from afstemning where id = \'$id\'\");

  $row    = mysql_fetch_array($result);
  $stemmer = $row[resultat_3];
  $stemmer_nu = $stemmer + 1;


mysql_query(\"update afstemning set resultat_3 = \'$stemmer_nu\' where id = \'$id\'\");
}

}
?>

<?php if ($action == \"poll\") { ?>

<?
include(\"include/db_ind.php\");

  $result = mysql_query(\"select resultat_1, resultat_2, resultat_3, svar_1, svar_2, svar_3, sporgsmaal from afstemning where id = \'$id\'\");

$row    = mysql_fetch_array($result);

$i_alt = $row[resultat_1] + $row[resultat_2] + $row[resultat_3];
$procent[1] = 100 / $i_alt * $row[resultat_1];
$procent[2] = 100 / $i_alt * $row[resultat_2];
$procent[3] = 100 / $i_alt * $row[resultat_3];
$round[1] = round($procent[1]);
$round[2] = round($procent[2]);
$round[3] = round($procent[3]);
$ny_procent[1] = $procent[1] / 4 * 3;
$ny_procent[2] = $procent[2] / 4 * 3;
$ny_procent[3] = $procent[3] / 4 * 3;

echo \"<DIV STYLE=text-align:center>$row[sporgsmaal]</DIV>\";
echo \"&nbsp;$row[svar_1]:\";
echo \"<TABLE width=100%>
<TR>
<TD><IMG SRC=images/afs.gif WIDTH=$round[1] HEIGHT=10></TD><TD>$round[1]%</TD>
</TR>
</TABLE>\";
echo \"&nbsp;$row[svar_2]:\";
echo \"<TABLE width=100%>
<TR>
<TD><IMG SRC=images/afs.gif WIDTH=$round[2] HEIGHT=10></TD><TD>$round[2]%</TD>
</TR>
</TABLE>\";
echo \"&nbsp;$row[svar_3]:\";
echo \"<TABLE width=100%>
<TR>
<TD><IMG SRC=images/afs.gif WIDTH=$round[3] HEIGHT=10></TD><TD>$round[3]%</TD>
</TR>
</TABLE>\";



} else {

include(\"include/db_ind.php\");

$result = mysql_query(\"SELECT resultat_1, resultat_2, resultat_3, svar_1, svar_2, svar_3, sporgsmaal FROM afstemning where id = \'1\'\");

$row = mysql_fetch_array($result);

print \"<form action=start.php?action=poll&id=1 method=post><DIV STYLE=text-align:center>$row[sporgsmaal]</DIV>\";
print \"<DIV STYLE=text-align:left><input type=radio name=a value=1 >$row[svar_1]<BR>\";
print \"<input type=radio name=a value=2 >$row[svar_2]<BR>\";
print \"<input type=radio name=a value=3 >$row[svar_3]</DIV><BR>\";
print \"<DIV STYLE=text-align:center><input type=submit  value=Stem class=button>\";

}
?>