random number with a fixed length

[inusrat]

Hi,

is there any function in PHP that one can use to generate random numder with a fixed length. Something equalent to ASP's

RandomNumber = Int(Rnd * 999999999) + 1

Thanks

http://www.786Marriage.com

http://www.amasspharma.com

http://www.ambdex.com

 

[sleipnir214]

Take a look at rand() or mt_rand()


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[inusrat]

Thanks a lot for your reply. Problem with both these functions is that they do not produce result of fix length. I need to produce 8 digits order confirmation number
for the customers.

Thanks

http://www.786Marriage.com

http://www.amasspharma.com

http://www.ambdex.com

 

[cLFlaVA]

Use this:
int rand ( [int min, int max])

Pass in the min and max values.

So, you'd do this:

$random = rand (10000000, 99999999)

 

[sleipnir214]

I doubt your VBScript example would generate a number of fixed length. What would happen if the random function generates 4?


You could, I suppose, left-pad with zeroes:

$number = sprintf ('%08d', mt_rand(1, 99999999));

Or generate them a digit at a time:

$number = '';
for ($counter = 0; $counter < 8; $counter++)
{
$number .= mt_rand(0, 9);
}



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TANSTAAFL!!

 

[inusrat]

i think $random = rand (10000000, 99999999) is producing number of fixed length, i tried 20 times and each time the length was 8.....

http://www.786Marriage.com

http://www.amasspharma.com

http://www.ambdex.com

 

[cLFlaVA]

Which is what you want? Or not?

The solution I gave you works fine, but if you'd like your numbers to have the potential of any number of leading 0's, then sleipnir214's solution is the way to go.

My solution will give you numbers like:
94357865
32749035
95420163
12345678

While sleipnir214's will give you:
123456789
987654321
000043521
008996353

So, the choice is yours.

 

[inusrat]

either way works, thanks to both of you.............

http://www.786Marriage.com

http://www.amasspharma.com

http://www.ambdex.com