PHP str_rot13() Function

PHP String Reference : Encode and decode a string: "

Definition and Usage

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.

Tip: Encoding and decoding are done by the same function. If you pass an encoded string as argument, the original string will be returned.

str_rot13(string)

Parameter	Description
string	Required. Specifies the string to encode

Return Value:	Returns the ROT13 version of the encoded string
PHP Version:	4.2.0+

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