Insert leading zeros

[Matt Palermo]

I have a string of digits that looks like something like these: 0025,
1234, 0001, 1003, and so on. They are all 4 digits in length. Then
when I increment one of them by 1, I want to still have 4 digits for the
value (it should insert the leading zeros if needed). Is there any type
of function that will force the incremented value to be exactly 4 digits
no matter what number it increments? Please let me know if there is a
function that will insert these leading zeros or truncate it to 4 digits
if necessary. Thanks.

Matt

[Curt Zirzow]

Matt Palermo <mpalermo@vt.edu> wrote:

> I have a string of digits that looks like something like these: 0025,
> 1234, 0001, 1003, and so on. They are all 4 digits in length. Then
> when I increment one of them by 1, I want to still have 4 digits for the
> value (it should insert the leading zeros if needed). Is there any type
> of function that will force the incremented value to be exactly 4 digits
> no matter what number it increments? Please let me know if there is a
> function that will insert these leading zeros or truncate it to 4 digits
> if necessary. Thanks.

$var = sprintf("%04d", $var+1);

Curt
--

[Matt Palermo]

Thanks a lot. It works like a charm!

-----Original Message-----
From: Curt Zirzow [mailto:curt@zirzow.dyndns.org]
Sent: Tuesday, July 15, 2003 8:45 PM
To: [email]php-general@lists.php.net[/email]
Subject: Re: [PHP] Insert leading zeros

Matt Palermo <mpalermo@vt.edu> wrote:

> I have a string of digits that looks like something like these: 0025,
> 1234, 0001, 1003, and so on. They are all 4 digits in length. Then
> when I increment one of them by 1, I want to still have 4 digits for

the

> value (it should insert the leading zeros if needed). Is there any

type

> of function that will force the incremented value to be exactly 4

digits

> no matter what number it increments? Please let me know if there is a
> function that will insert these leading zeros or truncate it to 4

digits

> if necessary. Thanks.

$var = sprintf("%04d", $var+1);

Curt
--


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