Core Function Rot13
From Sputnik Wiki
Rot13( <str> )
Contents |
Description
Perform the rot13 transform on a string.
Parameters
expression
The input string.
Return Value
Returns the ROT13 version of the given string.
Remarks
The ROT13 encoding simply shifts every letter by 13 places in the alphabet while leaving non-alpha characters untouched.
Encoding and decoding are done by the same function, passing an encoded string as argument will return the original version.
Example
echo rot13('Sputnik'); // Fchgavx
