в 10:37, 26 мая 2010

2010-05-26T10:37:27Z

Admin: 1 версия

2010-05-26T07:00:43Z

1 версия

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==Change class instance after clone==



<source lang="html4strict">

<?php
class Employee {

private $employeeid;
private $tiecolor;
function setEmployeeID($employeeid) {
$this->employeeid = $employeeid;
}
function getEmployeeID() {
return $this->employeeid;
}
function setTiecolor($tiecolor) {
$this->tiecolor = $tiecolor;
}
function getTiecolor() {
return $this->tiecolor;
}
}
$drone1 = new Employee();
$drone1->setEmployeeID("2222");
$drone1->setTiecolor("red");
$drone2 = clone $drone1;
$drone2->setEmployeeID("1111");
echo "drone1 employeeID: ".$drone1->getEmployeeID()." ";
echo "drone1 tie color: ".$drone1->getTiecolor()." ";
echo "drone2 employeeID: ".$drone2->getEmployeeID()." ";
echo "drone2 tie color: ".$drone2->getTiecolor()." ";
?>

</source>

==clone a class==



<source lang="html4strict">

<?php
class Account {
public $balance;
function __construct( $balance ) {
$this->balance = $balance;
}
}
class Person {
private $name;
private $age;
private $id;
public $account;
function __construct( $name, $age, Account $account ) {
$this->name = $name;
$this->age = $age;
$this->account = $account;
}
function setId( $id ) {
$this->id = $id;
}

function __clone() {
$this->id = 0;
}
}
$person = new Person("Joe", 35, new Account( 2000 ) );
$person->setId( 111 );
$person2 = clone $person;
$person->account->balance += 110;
print $person2->account->balance;
?>

</source>

==clone class instance==



<source lang="html4strict">
<?php
class Employee {

private $employeeid;
private $tiecolor;
function setEmployeeID($employeeid) {
$this->employeeid = $employeeid;
}
function getEmployeeID() {
return $this->employeeid;
}
function setTiecolor($tiecolor) {
$this->tiecolor = $tiecolor;
}
function getTiecolor() {
return $this->tiecolor;
}
function __clone() {
$this->tiecolor = "blue";
}
}
$drone1 = new Employee();
$drone1->setEmployeeID("1111");

$drone2 = clone $drone1;
$drone2->setEmployeeID("1111");
echo "drone1 employeeID: ".$drone1->getEmployeeID()." ";
echo "drone2 employeeID: ".$drone2->getEmployeeID()." ";
echo "drone2 tiecolor: ".$drone2->getTiecolor()." ";
?>

</source>

==Cloning an aggregated class==



<source lang="html4strict">

<?
class Address {
protected $city;
protected $country;

public function setCity($city) { $this->city = $city; }
public function getCity() { return $this->city; }
public function setCountry($country) { $this->country = $country; }
public function getCountry() { return $this-> country;}
}
class Person {
protected $name;
protected $address;
public function __construct() { $this->address = new Address; }
public function setName($name) { $this->name = $name; }
public function getName() { return $this->name; }
public function __call($method, $arguments) {
if (method_exists($this->address, $method)) {
return call_user_func_array( array($this->address, $method), $arguments);
}
}
}
$a = new Person;
$a->setName("A");
$a->setCity("B");
$z = clone $a;
$z->setName("Z");
$z->setCity("T");
print $a->getName() . " lives in " . $a->getCity() . ".";
print $z->getName() . " lives in " . $z->getCity() . ".";
?>

</source>

==Copying Objects==



<source lang="html4strict">

<?
class DogTag {
public $Words;
}
class Dog {
public $Name;
public $DogTag;
public function bark( ) {
print "Woof!\n";
}
public function _ _construct($DogName) {
print "Dog: $DogName\n";
$this->Name = $DogName;
$this->DogTag = new DogTag;
$this->DogTag->Words = "$DogName:555-1234";
}
}
class Poodle extends Dog {
public function bark( ) {
print "Yip!\n";
}
}
$poppy = new Poodle("Poppy");
print $poppy->DogTag->Words . "\n";

function namechange($dog) {
$dog->Name = "Dozer";
}
namechange($poppy);
print $poppy->Name . "\n";
namechange(clone $poppy);
?>

</source>

==Parents clone==



<source lang="html4strict">

<?
abstract class Dog {
public function __clone( ) {
echo "In dog clone\n";
}
}
class Poodle extends Dog {
public $Name;
public function __clone( ) {
echo "In poodle clone\n";
parent::__clone( );
}
}
$poppy = new Poodle( );
$poppy->Name = "Poppy";
$rover = clone $poppy;
?>

</source>

==Properly implementing cloning in aggregated classes==



<source lang="html4strict">

class Person {
public function __clone() {
$this->address = clone $this->address;
}
}

</source>

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PHP/Class/clone - История изменений

в 10:37, 26 мая 2010

Admin: 1 версия