. PHP Design Patterns . PHP Design Patterns PHP OO Class Basics
PHP Design Patterns PHP OO Class Basics
About OO PHP Class Basics
Here is an example of creating a very simple class called OOPHPClass. The class has one variable, and functions to "set" and "get" that variable.
OOPHPClass.php
//copyright Lawrence Truett and FluffyCat.com 2007, all rights reserved
//OOPHPClass - a simple OO PHP Class
class OOPHPClass {
//this is a private variable, and can only be accessed by this class
private $instanceName;
//a constructor is called when an "instance" of a class is created
function __construct() {
$this->instanceName = 'default';
}
public function getName() {
return $this->instanceName;
}
//the this-> part referers to the variable specific to one instance
public function setName($nameIn) {
$this->instanceName = $nameIn;
}
}
download source, use right-click and "Save Target As..." to save with a .php extension.
testOOPHP.php
//copyright Lawrence Truett and FluffyCat.com 2007, all rights reserved
include_once('OOPHPClass.php');
define('BR', '<'.'BR'.'>');
echo 'TESTING OOPHPClass'.BR;
echo BR;
echo 'test 1 - create a class'.BR;
$classOne = new OOPHPClass();
echo 'default name: '.$classOne->getName();
echo BR;
$classOne->setName("Harold");
echo 'name after set: '.$classOne->getName();
echo BR.BR;
echo 'test 2 - create another class'.BR;
$classTwo = new OOPHPClass();
$classTwo->setName("Wilma");
echo $classTwo->getName();
echo BR.BR;
echo 'test 3 - show both classes'.BR;
echo 'Class One Name: '.$classOne->getName();
echo BR;
echo 'Class Two Name: '.$classTwo->getName();
echo BR.BR;
echo 'END TESTING OOPHPClass'.BR;
download source, use right-click and "Save Target As..." to save with a .php extension.
output of testOOPHP.php
TESTING OOPHPClass
test 1 - create a class default name: default name after set: Harold
test 2 - create another class Wilma
test 3 - show both classes Class One Name: Harold Class Two Name: Wilma
END TESTING OOPHPClass
References
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