The general form for defining a new class in PHP is as follows:
Here is the description of each line:
The variable $this is a special variable and it refers to the same object ie. itself.
Here is the description of each line:
- The special form class, followed by the name of the class that you want to define.
- A set of braces enclosing any number of variable declarations and function definitions.
- Variable declarations start with the special form var, which is followed by a conventional $ variable name; they may also have an initial assignment to a constant value.
- Function definitions look much like standalone PHP functions but are local to the class and will be used to set and access object data.
Example:
Here is an example which defines a class of Books type:<?php
class Books{
/* Member variables */
var $price;
var $title;
/* Member functions */
function setPrice($par){
$this->price = $par;
}
function getPrice(){
echo $this->price ."<br/>";
}
function setTitle($par){
$this->title = $par;
}
function getTitle(){
echo $this->title ." <br/>";
}
}
?>
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