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timmerk · Oct 9, 2003, 03:48 AM

As some of you may have seen in my other posts, I had needed code that adds IPs to a listbox in real time. However, even though I have that working now, when I go and submit the form, the listbox with the added values from JS are not sent though the POST variables. Any idea how to get the dynamically added items in the listbox to get sent with the other variables?

Thanks!

mzllr · Oct 9, 2003, 04:48 AM

here's the whole thing...

[php]<html>

<head>

<script language="JavaScript" type="text/javascript">
function removeIP(v)
{
// remove IP address from list
document.forms[0].ipList[v] = null;
}

function checkIP(v)
{
var check = 0;

// creates an array from the sections of an IP address
// 192.168.254.2 would be ipSub(192, 168, 254, 2)
var ipSub = v.split(".");

// checks to make sure a valid IP address is entered
for (i = 0; i < ipSub.length; ++i)
{
// checks to ensure that only numbers were entered for the IP address
for (j = 0; j < ipSub[i].length; ++j)
{
// verifies that each character is a number
var abc = parseFloat(ipSub[i].charAt(j));

// if something other than a number is found, an alert is posted
if (isNaN(abc)) { alert("Character " + ++j + " in section " + ++i + " is not a number."); ++check; }
}

// if an element of the array ipSub has more than 3 characters, an alert is posted
if (ipSub[i].length > 3) { alert("Invalid IP address, section " + ++i + " is too long."); ++check; }

// if an elembent of the array ipSub is greater than 255, an alert is posted
if (ipSub[i] > 255) { alert("Invalid IP address, section " + ++i + " is out of range."); ++check; }
}

// adds to list if valid
if (check == 0)
{
// increase the number of options by 1
++document.forms[0].ipList.length;

// add text to the new option
document.forms[0].ipList[(document.forms[0].ipList.length - 1)].text = v;
}
}

function submitIP(v)
{
// selects all values in list box
for (i = 0; i < v.length; ++i)
{
v[i].selected = "true";
}

// changes the name of the <select> tag to match an array for PHP processing
document.forms[0].ipList.name = "ipList[]";
}
</script>

</head>

<body>

<form name="ipForm" method="post" action="<? echo $PHP_SELF ?>">
<select name="ipList" size="10" multiple>
<option>192.168.254.2</option>
<option>192.168.254.3</option>
<option>192.168.254.4</option>
</select>
<a href="javascript:removeIP(document.forms[0].ipList.selectedIndex)">Remove</a>
<br> <br>
<input type="text" name="add_ip">
<a href="javascript:checkIP(document.forms[0].add_ip.value)">Add</a>
<br>
<input type="submit" name="submit" value="Submit" onClick="javascript:submitIP(document.forms[0].ipList);">
</form>

<?

if (!$_POST['submit'])

{
echo "form not submitted";
}

else

{
echo "<b>IP Addresses from list:</b> <br>";

for ($i=0; $i < count($ipList); $i++)
{
echo "$ipList[$i] <br>";
}
}

?>

</body>

</html>[/php]

see it here.

timmerk · Oct 9, 2003, 12:03 PM

Thanks! Seems to work perfect!

timmerk · 03:16 AM

delete. im doing something wrong.

timmerk · Oct 10, 2003, 02:45 PM

I found out why it wasn't working for me - register globals needs to be turned on in PHP. Any ideas how to make it work without globals on? I am using the $_POST variable to access the ipList, so I don't know why it needs globals.

Any ideas?

varcos · Oct 10, 2003, 03:03 PM

Hey, I'm not sure what your problem is but you can always put this in your code to see what variables are being passed around.

print_r(get_defined_vars());

Hope that helps,

varcos

clam2000 · Oct 10, 2003, 03:40 PM

Try the sample code with

'$ipList=$HTTP_POST_VARS['ipList'];'

just after the else.

this should make sure that the iplist variable has the array of ip's.

--will

timmerk · 12:37 AM

Thanks, but I already am using the $_POST variable which does the same thing. But I'm going to keep looking around where I might have forgotten it.

On another subject - the above javascript code that selects all of the list doesn't work when I try using the code in my code - it just selects the last item in the listbox and therefore, submits just that.

I'll try to post my code later. Thanks

timmerk · Oct 11, 2003, 12:38 AM

bump (i edited the post above, but it didn't put the thread on top)

mzllr · Oct 11, 2003, 01:24 AM

Originally posted by timmerk:
On another subject - the above javascript code that selects all of the list doesn't work when I try using the code in my code - it just selects the last item in the listbox and therefore, submits just that.

does your select tag allow for multiple selections?

[php]
<select name="ipList" size="10" multiple>
[/php]

timmerk · Oct 11, 2003, 01:30 AM

bingo! man, i got to give you credit with my program/page. is this ok?

thanks again for all your help!