why we should learn advanced php?

The good feature of PHP is that it is very robust and scalable. PHP is much the same as if it was an object-oriented language, making it a very easy language to deal with. PHP also has a very strong meta-language for programmers. PHP has increased demand for language development year over year.

Class & Object

Class:-

• PHP class is a group of values and a set of operations to manipulate the value or to change the value.
• Classes are the blueprints of objects.
• Classes are nothing without objects.
• Class is a programmer-defined data type.
• The syntax for defining a class in PHP is very simple.
• We use the keyword class followed by the name of the class.

Rules for creating class:-

• Class name can be any valid label like(Vikash,Ram,Boss,Cat,Plant e.t.c).
• Cannot be used Php reserved words.
• The class name, should start with letter or underscore.
• for remembering class, the class name starts with the first capital letter.

syntax:-

class Classname
{
var&variable_name;
var&variable_name;
var&variable_name;

function Method_name()
{
body of method;
}

function Method_name()
{
body of method;
}

function Method_name(parameter_list)
{
body of method;
}

}

Object:-

• Objects are defined from classes.
• An object of a class a copy of each variable defined in the class is created.
• Classes are nothing without objects.
• We can create multiple objects from a class.

Syntax:-

$Object_name=new class_name;

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