3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?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"); $bytes = unpack("C*", $result); echo "Bytes: "; foreach($bytes as $byte) echo $byte . " "; echo "\nEncrypted string: "; echo $result;
based on 8nsp6
Output for 4.3.0 - 7.2.0
Bytes: 21 42 42 50 98 42 50 98 34 97 46 44 47 37 99 50 39 45 53 39 45 34 39 Encrypted string: **2b*2b"a.,/%c2'-5'-"'