Constructor In PHP OOP With Example

Constructor in PHP OOP with example – onlinecode

In this post we will give you information about Constructor in PHP OOP with example – onlinecode. Hear we will give you detail about Constructor in PHP OOP with example – onlinecodeAnd how to use it also give you demo for it if it is necessary.

Constructor in PHP with example ?

Constructor is a key part of PHP oops concept.
Constructor in PHP is special type of function of a class which is automatically executed as any object of that class is created or instantiated.
Constructor is also called magic function because in PHP, magic method is start usually with two underscore characters.
In PHP4, we create constructor by class name it means the name of constructor is same as the class name but in PHP5, it has been changed to create constructor, it can be initialized by ‘__construct’ keyword.

Why do we need a constructor ?

As we know constructor is a special function and it automatically called when any object of a class is instantiated, so in that way we can take benefits of constructor by using it in our class. We can setup the object before using it, or can start session in constructor so we don’t have to start in every method of class.
You can write some line of code and start to instantiate an object to call class method then constructor called as object is instantiated and the line of code which is written in constructor is executed automatically.
Constructor with parameters is look like regular method because you can pass the variable to constructor as in regular method.


class Bird
{
    public $bird_name="No any birds for now";
    public function__construct($bird_name)
{
$this->bird_name =$bird_name;
}
}
$bird=newBird("Sparrow is bird");// now constructor is called automatically because we have initialized the object or class Bird.
echo$bird->bird_name;
Output of above code is :
Sparrow is bird

                            class Bird{        public $bird_name = "No any birds for now";        public function __construct($bird_name)    {        $this->bird_name = $bird_name;    }}$bird = new Bird("Sparrow is bird"); // now constructor is called automatically because we have initialized the object or class Bird.echo $bird->bird_name;Output of above code is :Sparrow is bird

Label :

PHP

OOP

Object Oriented Programming

Web Development

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For More Info See :: laravel And github

See also
PHP - I Can't get the $_POST Values on Ajax Request
In this post we will give you information about PHP - I Can't get the $_POST Values on Ajax Request. Hear we will give you detail about PHP - I Can't get the $_POST Values on Ajax RequestAnd how to use it also give you demo for it if it is necessary.

I want to share this posts with you because when i was working on native PHP and Ajax Post request(Specially AngularJS Post request) at that time i can't get Post value on form submit. That's why i would like to share you this post. I also want to tell you i was working on my Ubuntu 14.04. I did try lot but i can't get value.
At last find stuff to how to solve this issue, i did use "file_get_contents('php://input')" that way i could get POST value in json object and i also decode json value using "json_decode()". So let's try this way :
Example:
$post = file_get_contents('php://input');
$post = json_decode($post);
$sql = "INSERT INTO items (title) VALUES ('".$post->title."')";
$result = $mysqli->query($sql);
Hope this code and post will helped you for implement PHP - I Can't get the $_POST Values on Ajax Request. if you need any help or any feedback give it in comment section or you have good idea about this post you can give it comment section. Your comment will help us for help you more and improve us. we will give you this type of more interesting post in featured also so, For more interesting post and code Keep reading our blogs
For More Info See :: laravel And github