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<?php /*$str = '4111111111111111'; //$str = '4556494730120644'; $str = 'xxxxxxxxxxxx1111'; $sKey = '8519293193919192153'; $s = ''; $j = 0; for($i=0;$i < strlen($str);$i++) { $s .= chr( ord(substr($str,$i,1)) + ord(substr($sKey,$j++,1))); if($j==strlen($sKey)) $j=0; } ; echo utf8_decode($s); echo "\n"; echo utf8_encode($s); echo "===============\n"; echo utf8_decode("°­©±ª±«©±«±©jbjc");*/ echo utf8_decode('XXXXXXXXXXXX0644');

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