Session String Date issue

[Lovemy7]

Hello All,
New to this forum. I don't normally require help but this one has me and most other PHP forums stumped so far:

I set a Session variable as per code below:

[code=php]$BR_unique_Ref = (string)$row_FindUser['userID']."-".date("U");
$_SESSION['invoiceData(4)'] = (string)$BR_unique_Ref;

[/CODE]

The moment I move to another page the SESSION increments by some seconds ... never the same and seems to me as if it is the time taken to load the document.

I have:
verified I do not reset it in any other place,
debugged all my scripts exhaustively,
Question:
Does PHP (5) fall back to the original construction of a variable even if it has been cast to a string?
How do I force the variable to remain exactly as it has been set?
I

[Installer]

It works fine for me, that is, the value doesn't change from page to page with PHP5.2. I don't see how casting to string would make a difference, or is even necessary. The concantenation operator should make the cast implicitly, anyway.

[Lovemy7]

Thats what I thought! But it sure changes... I am in the process of stripping out all non essential script and re-testing

Thanks