random numbers vs sequential numbers

[skydivelouie]

I need an expert who can help me out with a precise answer...I can't seem to find an answer on the net or in other forums...Please Help...

This is what I'm trying to accomplish...

$Alpha = array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
$a = rand(0,25);
$b = rand(0,25);
$c = $Alpha[$a];
$d = $Alpha[$b];
$e = rand(10000,99999);
$f = rand(100,999);
$ID = $c.$e.$d.$f;

This produces a random ID alpha/numeric...

What I'm wanting to do is have it solely numeric and sequential...for example starting from 100 and leading up to 1000 in increments of 1...

I can find all kinds of information about producing random numbers...which I've done successfully by accident and on purpose...

It would seem that something like this would work...but it doesn't...

$a = 100; $a++
$ID = $a;

This only seems to return the ID 101 over and over...it doesn't not increase in increments of 1 with each form submission...I would like the number to be unique and non-repeptitive...

Does anyone know how this can be done?...I am at my wits end...

Any help, advice or a point in the right direction will be extremely helpful...

 

[skydivelouie]

Here's a copy of the flat file funtion of the scripts:

if ($Action == "F" or $Action == "EF" or $Action == "DF"){

while (list ($key, $val) = each ($_FILE))
{
if ($key != "Settings" and $key != "Refresh")
{
$val = stripslashes($val);
$val = str_replace('"','"',$val);
$val = strip_tags($val);
$key = ucfirst($key);
$key = str_replace("_"," ",$key);
$FileData .= "$key: $val\r\n";
}
}

$FileData .= "Received: " . $Time . "\r\nIP: " . $IPAddress . "\r\n" . $FileData . "\r\n========================================\r\n\r\n";

$handle = @fopen($FlatFile,'a');
@flock($handle,LOCK_EX);
@fwrite($handle,$FileData);
@flock($handle,LOCK_UN);
@fclose($handle);

} // END OF ACTION

There is also a second settings.php file for easy manipulation, although not so easy for me. This is what I've done with that portion.

# FLAT-FILE SETTING
$FlatFile = "/mmex/ID.txt"

Also, I CHMOD to 666 for this file.

I am using this script as a form processor. I am attempting to generate a unique Order ID for each form submission. The form is sent in HTML to a specified email address with the Subject line being: Web Order - 1000. A second form submission would be sent to the same email address, although this time the subject line would be: Web Order - 1001. And so on.

I don't need to do anything with the number sequence, other than be certain that the numbers do not duplicate.

These will be in my inbox and I would access these form submissions from there.

I apologize for my ignorance and appreciate your help.