65 lines
2.0 KiB
PHP
65 lines
2.0 KiB
PHP
<?php
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/**
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* Project: SmartyValidate: Form Validator for the Smarty Template Engine
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* File: validate_criteria.isCCExpDate.php
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* Author: Monte Ohrt <monte at newdigitalgroup dot com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* @link http://www.phpinsider.com/php/code/SmartyValidate/
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* @copyright 2001-2005 New Digital Group, Inc.
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* @author Monte Ohrt <monte at newdigitalgroup dot com>
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* @package SmartyValidate
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*/
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/**
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* test if a value is a valid credit card expiration date
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*
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* @param string $value the value being tested
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* @param boolean $empty if field can be empty
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* @param array params validate parameter values
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* @param array formvars form var values
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*/
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function smarty_validate_criteria_isCCExpDate($value, $empty, &$params, &$formvars) {
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if(strlen($value) == 0)
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return $empty;
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if(!preg_match('!^(\d+)\D+(\d+)$!', $value, $_match))
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return false;
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$_month = $_match[1];
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$_year = $_match[2];
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if(strlen($_year) == 2)
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$_year = substr(date('Y', time()),0,2) . $_year;
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$_month = (int) $_month;
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$_year = (int) $_year;
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if($_month < 1 || $_month > 12)
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return false;
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if(date('Y',time()) > $_year)
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return false;
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if(date('Y',time()) == $_year && date('m', time()) > $_month)
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return false;
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return true;
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}
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?>
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