Online PHP editor | refs for Gebpq

<?php function OTP($input, $pad) { $inputlen = strlen($input); $padlen = strlen($pad); $inputbytes = unpack("C*", $input); //Pack C* will convert a string into a byte array, such as 'abc' to Array(0x61, 0x62, 0x63) $padbytes = unpack("C*", $pad); $output = ""; for($i = 0; $i < $inputlen; $i++) //Loop through the input string $output .= chr($inputbytes[$i + 1] ^ $padbytes[$i % $padlen + 1]); return $output; } $result = OTP("This is a long sentence", "Abc"); var_dump(unpack("C*", $result)); var_dump($result);