str_replace or something

[NevadaSam]

I want to remove everthing from a string except the numbers. The strings will be mostly like this, but won't always have letter at the end.

$str = 'D-6430zip';

For the above string, I want the echo results to = 6430

[AnthonySterling]

<?php
$sString = 'D-6430zip';
echo $sString; #D-6430zip
$sString = preg_replace('~[^0-9]~', '', $sString); #removes anything non-numeric
echo $sString;#6430
?>

[NevadaSam]

That is just what I wanted.
Thanks,
Samantha

[AnthonySterling]

Not a problem, HTH.

[logic_earth]

can simplifiy the regex by just doing /\D/

[NevadaSam]

I like simple things... thanks logic_earth.