. PHP Design Patterns . PHP Design Patterns PHP OO Abstract Class Basics
PHP Design Patterns PHP OO Abstract Class Basics
PHP Abstract Class Basics
Here is an example of creating a very simple abstract class called OOPHPAbstractClass, and OOPHPClassToExtendAnAbstract which extends it.
Note that to successfully extend OOPHPAbstractClass, OOPHPClassToExtendAnAbstract must have getName() and setName functions().
OOPHPClassToExtendAnAbstract.php
//copyright Lawrence Truett and FluffyCat.com 2007, all rights reserved
//this class "extends" OOPHPAbstractClass
include_once('OOPHPAbstractClass.php');
class OOPHPClassToExtendAnAbstract extends OOPHPAbstractClass {
private $instanceName;
//OOPHPAbstractClass has the abstract function getName,
// so we must implement it here.
public function getName() {
return $this->instanceName;
}
//OOPHPAbstractClass has the abstract function setName,
// so we must implement it here.
public function setName($nameIn) {
$this->instanceName = $nameIn;
}
}
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OOPHPAbstractClass.php
//copyright Lawrence Truett and FluffyCat.com 2007, all rights reserved
//OOPHPAbstractClass - a simple OO PHP Abstract Class
// this defines two functions, getName() and setName($nameIn)
// which any class extending this must have
abstract class OOPHPAbstractClass {
abstract public function getName();
abstract public function setName($nameIn);
}
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testOOPHPAbstract.php
//copyright Lawrence Truett and FluffyCat.com 2007, all rights reserved
include_once('OOPHPClassToExtendAnAbstract.php');
define('BR', '<'.'BR'.'>');
echo 'BEGIN TESTING PHP ABSTRACT CLASSES'.BR;
echo BR;
echo 'test 1 - create a class which extends an abstract'.BR;
$classOne = new OOPHPClassToExtendAnAbstract();
echo BR;
$classOne->setName("Harold");
echo $classOne->getName();
echo BR.BR;
echo 'END TESTING PHP ABSTRACT CLASSES'.BR;
download source, use right-click and "Save Target As..." to save with a .php extension.
output of testOOPHPAbstract.php
BEGIN TESTING PHP ABSTRACT CLASSES
test 1 - create a class which extends an abstract
Harold
END TESTING PHP ABSTRACT CLASSES
References
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