fenglin/lib/verify_id_card.inc.php

<?
function VerifyIDCard($str)
{
        $iS = 0;
        $iW = array(7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2);
        $verCode = array('1','0','X','9','8','7','6','5','4','3','2');
        
        if (strlen($str) != 18)
                return -1; //Invalid string length
        
        for ($i=0;$i<17;$i++)
        {
                $iS += intval($str[$i] - '0') * $iW[$i];
        }
        
        $iY = $iS % 11;

        if ($verCode[$iY] != $str[17])
                return 1; //Invalid card number

        return 0; //Verify OK
}
?>
1	<?
2	function VerifyIDCard($str)
3	{
4	$iS = 0;
5	$iW = array(7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2);
6	$verCode = array('1','0','X','9','8','7','6','5','4','3','2');
7
8	if (strlen($str) != 18)
9	return -1; //Invalid string length
10
11	for ($i=0;$i<17;$i++)
12	{
13	$iS += intval($str[$i] - '0') * $iW[$i];
14	}
15
16	$iY = $iS % 11;
17
18	if ($verCode[$iY] != $str[17])
19	return 1; //Invalid card number
20
21	return 0; //Verify OK
22	}
23	?>
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