The str_rot13() function performs the ROT13 encoding on a string.The ROT13 encoding shifts every letter 13 places in the alphabet. Numeric and non-alphabetical characters remains untouched.
string str_rot13 ( string $str )
Performs the ROT13 encoding on the str argument and returns the resulting string.
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.
| Parameter | Description |
|---|---|
| str | Required. Specifies the string to encode |
Returns the ROT13 version of the given string.