alphanumericid generation

[phpprogrammer]

is there anyonw know how to generate the id in sequence using alphanumeric.
for example

first 3 words start with alpha and last 3 words is numeric

for example
I will start the id with ABB123
so the code will generate the code everytime by changing the code itself

the code will generate once at a time if user click

ABB124
ABB125
then after the numeric up to ABB 999
the code will then increase the alpha to ABC001

anyone who know these kind of code?? thanks!

[leatherback]

Well, you could consider something like:

$alf = "abcdefghijklmnopqrstuvw";
$num = "123456789a";

$key = $alf[$i].$alf[$j].$alf[$k].$num[l]$num[n]$num[n]

And use a loop which will make sure i, j, k never reach 23, but instead reset themselve to 1 and set the next in line to the next number, and for l, m, n you make sure they never reach more then 9.

J.

[jimson]

like car plate number,
anyway, what will happen if the code come to ZZZ999

[leatherback]

eerhh.

After 15.625.000 id's have been generated!?

You run out of disk-space

;-)

J.

[laserlight]

actually, it would be 0x10BEB98 possible ids.

If such an id type is chosen, then it should be large enough to accomodate the maximum number of records.

[leatherback]

eerhh..

0x10BEB98

What do you mean with that Laser?

I think it is: 26³ * 10³ possible combinations?

[laserlight]

0x10BEB98 = 17558424 = 26³ * 999
since we start at AAA001 not AAA000

[leatherback]

k.

You win..

😃

[jimson]

laserlight... u are cool girl...