в 10:37, 26 мая 2010

2010-05-26T10:37:27Z

Admin: 1 версия

2010-05-26T07:00:43Z

1 версия

Новая страница

==Calling an Overridden Method==



<source lang="html4strict">
<html>
<head>
<title>Calling an Overridden Method</title>
</head>
<body>
<?php
class FirstClass{
var $name = "Joe";
function FirstClass( $n ) {
$this->name = $n;
}
function sayHello() {
print "my name is $this->name<br>";
}
}
class second_class extends FirstClass {
function sayHello() {
print "calling method from parent class -- ";
FirstClass::sayHello();
}
}
$test = new second_class("sub class");
$test->sayHello();
?>
</body>
</html>

</source>

==Class method override Demo==



<source lang="html4strict">

<?php
class myClass {
var $name = "A";
function myClass($n) {
$this->name = $n;
}
function sayHello() {
echo "HELLO! My name is ".$this->name;
}
}
class childClass extends myClass {
function sayHello() {
echo "I will not tell you my name.";
}
}
$object1 = new childClass("a");
$object1 -> sayHello();
?>

</source>

==Method override for Rectangle class==



<source lang="html4strict">
<?php
class Rectangle {
public $height;
public $width;

public function __construct($width, $height) {
$this->width = $width;
$this->height = $height;
}

public function getArea() {
return $this->height * $this->width;
}
}
class Square extends Rectangle {
public function __construct($size) {
$this->height = $size;
$this->width = $size;
}

public function getArea() {
return pow($this->height, 2);
}

}
$obj = new Square(7);
$a = $obj->getArea();
echo "$a";
?>

</source>

==The Method of a Child Class Overriding That of Its Parent==



<source lang="html4strict">
<html>
<head>
<title>The Method of a Child Class Overriding That of Its Parent</title>
</head>
<body>
<?php
class FirstClass{
var $name = "first class";
function FirstClass( $n ){
$this->name = $n;
}
function sayHello(){
print "Hello my name is $this->name<br>";
}
}
class second_class extends FirstClass {
function sayHello(){
print "say hi<br>";
}
}
$test = new second_class("new name");
$test->sayHello();
?>
</body>
</html>

</source>

← Предыдущая	Версия 10:37, 26 мая 2010
(нет различий)

PHP/Class/Method Override - История изменений

в 10:37, 26 мая 2010

Admin: 1 версия