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@timw4mail
Created Dec 7, 2011
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PHP Magic methods
<?php
/**
* Magic constants
*/
// Current line number of the php file
$current_line_number = __LINE__;
// Current PHP file
$current_file = __FILE__;
// Directory of current php file
$current_folder = __DIR__;
// Name of the current function
$current_function = __FUNCTION__;
// Name of the current class
$current_class = __CLASS__;
/**
* Example parent class
*/
class Bar {
function __construct()
{
}
function __destruct()
{
}
}
/**
* Class outlining PHP's magic methods
*/
class Foo extends Bar {
/**
* Traditional OOP methods
*/
// Called when an object is instantiated
function __construct()
{
//Call to parent constuctor. This has to be done explicitly.
parent::__construct();
}
// Called when there are no references to the object remaining
function __destruct()
{
//Call to the parent destructor. This has to be done explicitly
parent::__destruct();
}
// --------------------------------------------------------------------------
/**
* Magic methods to dynamically create properties and methods
*/
//Lets you call a method on an object that is not accessable
// $foo->bar() doesn't exist. $foo->bar() will call this method
function __call($name, $arguments)
{
}
//Lets you call a method statically on an object that is not accessable
// $foo::bar() doesn't exist. $foo::bar() will call this method
static function __callStatic($name, $arguments)
{
}
// Lets you retrieve an object property that is not accessable
// $foo->bar doesn't exist. $foo->bar will call this method
function __get($name)
{
}
// Lets you set an object property that is not accessable
// $foo->bar doesn't exist. $foo->bar = baz; will call this method
function __set($name, $value)
{
}
// Called when using isset() or empty() on an inaccessible property
function __isset($name)
{
}
// Called when using unset() on an inaccessible property
function __unset($nmae)
{
}
// --------------------------------------------------------------------------
/**
* Miscellaneous
*/
// Called when the object is used as a string
// echo $object; will call this method on $object
function __toString()
{
}
// Called when an object is used as a function
// $object() will call this method on $object
function __invoke()
{
}
// Allows operations to be performed on a clone of objects from this class
// $new_obj = clone $object calls this method after making a shallow clone of $object
// This is not callable
function __clone()
{
}
}
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