process a multiple selectbox

[Anon]

<form method=post action="testpass.html">

<select size="6" name="list[]" multiple>
<option value="1">Item 1
<option value="2">Item 2
<option value="3">Item 3
<option value="4">Item 4
<option value="5">Item 5
<option value="6">Item 6

</select>

<input type=submit>

</form>

//////////////////////////////////////////

the goal: get each of the values in this selectbox to appear on the next page as text, after clicking submit.

[dstockto]

You can use this code to print out the values that were selected.

If you wanted a more descriptive output, you can either handle the values yourself for each option, or have a more descriptive value="" statement.

<?php
$numselected = count($list);

for ($i = 0; $i < $numselected; $i++)
{
echo ("You selected item " . $list[$i] . ".<BR>\n");
}

?>

DAve

[Anon]

Remember (sorry if it seems obvious) :-)

The array list[] will only contain the items physically selected within the list.

<?php
$itemcount = count($list);

for ($items = 0; $items < $itemcount ; $items ++)
{
echo ("You selected item " . $list[$items ] . ".<BR>\n");
}

?>

[Anon]

thanks dave.

the array will need to include all values in the multiple selectbox, regardless of them being selected or not.

thanks again!

[dstockto]

In that case, you will probably need to set up an array of stuff on your own then since the selected ones are the only ones that will be sent. Something like this would probably work.

<INPUT TYPE=HIDDEN NAME=list[] VALUE=1>
<INPUT TYPE=HIDDEN NAME=list[] VALUE=2>
<INPUT TYPE=HIDDEN NAME=list[] VALUE=3>
<INPUT TYPE=HIDDEN NAME=list[] VALUE=4>
...

You could create this with a for loop, or from a database. Is this what you are looking for?

Dave

[Anon]

You could always select all the items within the list using a bit of javascript upon submitting the form.

Something like:

function SelectAll(SourceList) {

for (var i=0; i<SourceList.options.length; i++) {
	SourceList.options[i].selected = true;
}

}

The function should be executed upon the form submit event:

<input type="submit" value="Submit" name="updatebutton" onclick="javascript: SelectAll(MyListBox);">

I haven't tried it, but it should work.

BB

[Anon]

this does the trick. this functino selects all values in the selectbox upon clicking the submit button. thanks, keith.

<pre>

<SCRIPT TYPE="text/javascript">
<!--

function SelectAll(frm){
var list=frm['list[]'];
for (var i=0; i<list.length; i++){
list.selected=1;
}
return true;
}

//-->
</SCRIPT>

</pre>

[Anon]

thanks BB. this does the trick too. of course, i forgot this in my example.

onclick="javascript: SelectAll(MyListBox);"

happy 4th of july 🙂