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run code in 300+ PHP versions simultaneously
<?phpgo function encode($string,$key) { $key = sha1($key); $strLen = strlen($string); $keyLen = strlen($key); for ($i = 0; $i < $strLen; $i++) { $ordStr = ord(substr($string,$i,1)); if ($j == $keyLen) { $j = 0; } $ordKey = ord(substr($key,$j,1)); $j++; $hash .= strrev(base_convert(dechex($ordStr + $ordKey),16,36)); } return $hash; } function decode($string,$key) { $key = sha1($key); $strLen = strlen($string); $keyLen = strlen($key); for ($i = 0; $i < $strLen; $i+=2) { $ordStr = hexdec(base_convert(strrev(substr($string,$i,2)),36,16)); if ($j == $keyLen) { $j = 0; } $ordKey = ord(substr($key,$j,1)); $j++; $hash .= chr($ordStr - $ordKey); } return $hash; } echo encode("Please Encode Me!","This is a key"); echo decode(encode("Please Encode Me!","This is a key"),"This is a key"); ?>
Output for 5.3.0 - 5.3.29, 7.2.29 - 7.2.33, 7.3.16 - 7.3.31, 7.4.3 - 7.4.25, 7.4.27 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
<?phpgo function encode($string,$key) { $key = sha1($key); $strLen = strlen($string); $keyLen = strlen($key); for ($i = 0; $i < $strLen; $i++) { $ordStr = ord(substr($string,$i,1)); if ($j == $keyLen) { $j = 0; } $ordKey = ord(substr($key,$j,1)); $j++; $hash .= strrev(base_convert(dechex($ordStr + $ordKey),16,36)); } return $hash; } function decode($string,$key) { $key = sha1($key); $strLen = strlen($string); $keyLen = strlen($key); for ($i = 0; $i < $strLen; $i+=2) { $ordStr = hexdec(base_convert(strrev(substr($string,$i,2)),36,16)); if ($j == $keyLen) { $j = 0; } $ordKey = ord(substr($key,$j,1)); $j++; $hash .= chr($ordStr - $ordKey); } return $hash; } echo encode("Please Encode Me!","This is a key"); echo decode(encode("Please Encode Me!","This is a key"),"This is a key"); ?>
Output for 8.0.13
Parse error: syntax error, unexpected token "function" in /in/1TMLI on line 2
Process exited with code 255.
Output for 5.4.0 - 5.4.23, 7.3.32 - 7.3.33, 7.4.26, 7.4.33
Parse error: syntax error, unexpected 'function' (T_FUNCTION) in /in/1TMLI on line 2
Process exited with code 255.

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