Form variable needed inside function!

Anon

I'm generating a random string, which after some searches on here I have sorted.
But I'm trying to include a form where a length is set for the length of the string, now, when I try that (replace 30 with $len) it just gives a blank white screen, presumably due to the fact that the variable from the form isn't accessible inside the table.

If anyone can give me pointers I'd be most grateful.

<form action="$PHP_SELF" method=post>
<table border="0" cellspacing="0" cellborder="0">
<tr>
<td>String Length</td><td><input type="text" name="len" size="20" maxlength="30"></td>
</tr>
</table>
<input type=submit name="submit" value="Generate Random String">
</form>

<?php

if ($submit) {

function SessionID($lengthstring=30)
{
$Pool = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$Pool .= "abcdefghijklmnopqrstuvwxyz";
$Pool .= "0123456789";

for($index = 0; $index < $lengthstring; $index++)
{
$sid .= substr($Pool,
(rand()%(strlen($Pool))), 1);

}

return($sid);
}

srand(time());

$session = SessionID(30);

echo "$session";

}

znouza

you have error here:->

if you're not echoing, you have to write PHP variables like

<form action="<?php echo $PHP_SELF;?>" method=post>

or if using php4

<form action="<?=$PHP_SELF;?>" method=post>

Anon

No, thats not it, yes, thats wrong, but thats only because in the actual file thats actually...

... because PHP_SELF gives a wrong link, for simplicitly to avoid having to go through all that I quickly, and wrongly, used PHP_SELF.

I should have said, it does work as it is, just not when I try to use a form to determine the string length.

znouza

so try:

<?
function sessionid($stringlen)
{

use 30 if not specified

$stringlen=($stringlen)?($stringlen):"30";
...
return sessionID;
}
$sid=sessionid($len);
?>
<form>
<input name="len" type=text>
...
</form>

or, If you'd like to use variable $len inside your sessionid function, you have to specify it as global:
function sessionid()
{
global $len;
..
}

Anon

Okay, working on that, getting closer thanks.

Another question though that I've been working on half the day.

I'm selecting from a pull down menu, and in the menu are a list of names, now, for each of those names in a corresponding email address in the same row of the same table, is there a way to send mail to whoevers name is selected from the table.

The list is a list of members, so you have to choose the one who recruited you, and then they get an email to confirm that they did recruit that person.

Thanks