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run code in 300+ PHP versions simultaneously
<?php $mustget = 'Kw4SCQ=='; $key = 'frtkj'; $key_length = strlen($key); $encoded_data = base64_decode($mustget); $result = ''; $length = strlen($encoded_data); for ($i = 0; $i < $length; $i++) { $tmp = $encoded_data[$i]; for ($j = 0; $j < $key_length; $j++) { $tmp = chr(ord($tmp) ^ ord($key[$j])); } $result .= $tmp; } echo $result; $mustget = 'Kw4SCQ=='; $string = 'Josh'; echo("Must get: " . $mustget . "\n"); echo("We got: " . base64_encode(xor_this($string)) . "\n"); function xor_this($text) { $key = 'frtkj'; $i = 0; $encrypted = ''; foreach (str_split($text) as $char) { $encrypted .= chr(ord($char) ^ ord($key{$i++ % strlen($key)})); } return $encrypted; }

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55.03 ms | 402 KiB | 5 Q