Thread: what is regular expression?
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Old 03-28-2008, 06:40 AM
Kamalakannan Kamalakannan is offline
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Default Re: what is regular expression?
This example for checking US zipcode format valid or not if valid returns true.

PHP Code:
<?php
define("US_ZIPCODE_REG", "^[[:digit:]]{5}(-[[:digit:]]{4})?$");

$vZip = '12345';
eregi(US_ZIPCODE_REG, $vZip);
?>
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