Posted by Mike on 02/13/05 19:37

You should be able to do this quite well with the str_pad() function.

http://us3.php.net/manual/en/function.str-pad.php

-M

> -----Original Message-----
> From: Shaun [mailto:shaunthornburgh@hotmail.com]
> Sent: Sunday, February 13, 2005 12:09 PM
> To: php-general@lists.php.net
> Subject: [PHP] Ensure a number is three digits long
>
> Hi,
>
> I have am trying to create functions to convert strings to
> ascii and vice
> versa:
>
> function string_to_ascii( $str ) {
> for( $i=0; $i < strlen( $str ); $i++ ) {
> $asc .= ord( substr( $str, $i ) );
> }
> return $asc;
> }
>
> This function works fine, however I need to ensure that the
> ASCII convertions are three digits long so that I know where
> to split the ASCII string when converting back to a normal
> string. i.e. 97 must be 097.
>
> Thanks for any advice offered
>
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