Hi,
I have a task to generate a new document number for a given range. This
document number is alphanumeric.
Here is the problem:
$lowrange1 = "900000";
$highrange1 = "HZZZZZ";
$currentno = "90CZZZ";
I expect that the next number in the series is: $nextnum = "90D000";
Before using this next number in the series, I need to confirm that the
number falls within the given range.
So I do something like this:
if ((strval($nextnum) >= strval($lowrange1)) && (strval($nextnum) <=
strval($highrange1)))
{
// we have a valid number in the range
}
else
{
// not in the range
}
Now.. the problem is - PHP thinks that 90D000 is less than $lowrange1. I
individually tested them and $lowrange1 was consistently greater than the
number.
I put the strval function around each variable to ensure it was comparing
strings and not numbers for those variables that only contain numbers. This
seems to be a problem with the letter "D" and "E" for all positions within
the 6 character alphanumeric number, except for the last position.
ie. 900000D works - $lowrange1 is less than this number and $highrange1 is
greater than this number.
For all other positions where the letter "D" and "E" are generated:
ie. 9000D0, 900D00, 90D000, 9D0000 and 9000E0, 900E00, 90E000, 9E0000
Is there a known problem with this? Why it is only happening with the
letters "D" and "E"? If I have 900F00 - this works, and so on for the rest
of the letters of the alphabet.
Thanks,
Sam
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