On Thursday 16 November 2006 01:38, Paul Novitski wrote:
> If you need to left-pad with zeroes, PHP comes to the rescue:
> http://php.net/str_pad
>
> However, if you're using the regular expression
> method then you might not need to pad the
> number. You can change the pattern from this:
>
> /(\d+)(\d{2})(\d{2})$/'
> to this:
> /(\d*)(\d{2})(\d{2})$/'
At 11/16/2006 03:23 PM, Børge Holen wrote:
Cool solution, and it works. =D
I do however need some chars to fill in on the finished product for the look
of it all, so the 0 is needed... Witch is a bit of a shame with this cool
string.
Well, just to make sure you don't discard regexp unnecessarily...
// the pattern guarantees five digits, then two, then two:
$sPattern = '/(\d{5})(\d{2})(\d{2})$/';
// prepend 9 zeroes to the number to enforce the minimum requirements:
preg_match($sPattern, '000000000' . $iNumber, $aMatches);
Results:
$iNumber = '';
$aMatches:
(
[0] => 000000000
[1] => 00000
[2] => 00
[3] => 00
)
$iNumber = '123';
$aMatches:
(
[0] => 000000123
[1] => 00000
[2] => 01
[3] => 23
)
$iNumber = '12345';
$aMatches:
(
[0] => 000012345
[1] => 00001
[2] => 23
[3] => 45
)
$iNumber = '123456789';
$aMatches:
(
[0] => 123456789
[1] => 12345
[2] => 67
[3] => 89
)
Paul
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