Magic Methods in PHP
In this article I explain PHP magic methods like sleep method and wakeup methods.
In this article you will be learn the PHP "magic" methods. The PHP magic methods
start with double underscore characters, as in "_" and another "_" (in other
words "_ _"), and they are:
Why they are called "magic" methods
Its definition is provided by programmers, in other words by you. PHP does
not provide the definition of these methods. The programmer writes the code that
defines what actually these methods will do. The user cannot call these methods,
that is why it is called "magic" methods because PHP will call the functions
behind the scene and these methods are always defined within the class. I am
providing an example to clarify my point better.
_sleep and _wakeup method in PHP
It is useful when we have a large object in our program and we do not want
to save the object completely. It is also used to commit and perform simple
clean up tasks.
It is useful when we want to reconstruct any resource that the object may
have, or say it is used to reestablish the database connections that may have
Example of __sleep and __wakeup magic methods
function __construct($serverName, $userName,$password,$dbName)
not connect: '
"Connection is Successfully established.";