PHP version: 5
Required modules: none
Required packages: none
An object that has a textual representation as an ASCII string
The string should contain only ASCII printable characters an possibly tabulation and new-line separators. Non-ASCII codes might yield unpredictable results in the client code, so implementations capable to generate Unicode strings should implement the UPrintable interface instead.
Return a readable representation of the object
Return: Readable representation of the object.