Mega Code Archive
How to have a multiple-select box that stays selected after submit
<![CDATA[
<?php
function inList($needle, $haystack)
{
while (list($k, $v) = each($haystack))
{
if ($needle == $v) return true;
}
return false;
}
function selectBox($size, $name, $matchArray)
{
echo "<select multiple name='".$name."[]' size='".$size."'>\n";
for ($x = 0; $x < 5; $x++)
{
echo "\t<option value='key".$x."'";
if (inList("key".$x, $matchArray)) echo " SELECTED";
echo ">Value ".$x."\n";
}
echo "</select>";
} //selectBox()
$num_selected = count($sel);
print "<P>Number of Values selected: $num_selected<p>\n";
if ($num_selected)
{
echo "<P>while list version<BR>\n";
while (list($k, $v) = each($sel))
{ echo "sel[".$k."] == ".$v."<BR>\n"; }
}
?>
<form method="post">
<?php selectBox(6,sel,$sel); ?>
<br>
<input type=submit value="Submit">
</form>
</BODY></HTML>
]]>