What does the function __ construct do?
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What does the function __ construct do?
__construct() is the method name for the constructor. The constructor is called on an object after it has been created, and is a good place to put initialisation code, etc. class Person { public function __construct() { // Code called for each new Person we create } } $person = new Person();
Why do we use constructor in CodeIgniter?
Constructors are useful if you need to set some default values, or run a default process when your class is instantiated. Constructors can’t return a value, but they can do some default work.
What does parent __construct () do?
We can do this by using the special function call parent::__construct(). The “parent” part means “get the parent of this object, and use it”, and the __construct() part means “call the construct function”, of course. So the whole line means “get the parent of this object then call its constructor”.
What is $this in CodeIgniter?
7. To actually answer your question, $this actually represents the singleton Codeigniter instance (which is actually the controller object). For example when you load libraries/models, you’re attaching them to this instance so you can reference them as a property of this instance.
Why do we use construct in PHP?
PHP – The __construct Function A constructor allows you to initialize an object’s properties upon creation of the object. If you create a __construct() function, PHP will automatically call this function when you create an object from a class.
What is public function in PHP?
public – the property or method can be accessed from everywhere. This is default. protected – the property or method can be accessed within the class and by classes derived from that class.
What is a controller in CodeIgniter?
A Controller is simply a class file that is named in a way that can be associated with a URI. Consider this URI: example.com/index.php/ blog / In the above example, CodeIgniter would attempt to find a controller named blog. php and load it.
What is __ construct in codeigniter?
The construct function lets you use things over the entire class. This way you don’t have to load the model/language/settings in every method. Say you have a model and language that you want to load for that class, you can do this in the constructor.
What is public function __ construct in PHP?