Complete PHP String Reference
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.
| Parameter | Description |
|---|---|
| string | Required. Specifies the string to encode |
Tip: Encoding and decoding are done by the same function. If you pass an encoded string as argument, the original string will be returned.
In this example we will encode and decode a string using the str_rot13() function:
The output of the code above will be:
Complete PHP String Reference
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