以前對(duì)面向?qū)ο?/a>僅限于死記硬背型，工作這么久了，回過(guò)頭來(lái)看又是一翻體悟，供大家看看。
1.final
final：php5新增一個(gè)final關(guān)鍵字。如果父類中的方法被聲明為final，則子類無(wú)法覆蓋該方法；如果一個(gè)類被聲明final，則不能被繼承。
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;
//淺克隆
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);
}
}
//深克隆
public function __clone(){
$this->address = clone $this->address;
}
}
$test1 = new Person;
$test2 = clone $test1;
$test1->setName('testname1');
$test1->setCity('testcity1');
$test2->setName('testname2');
$test2->setCity('testcity2');
echo $test1->getName().'-'.$test1->getCity()."/n";
echo $test2->getName().'-'.$test2->getCity()."/n";
//testname1-testcity2
//testname2-testcity2
public function __get($property){
if(isset($this->__data[$property])){
return $this->__data[$property];
}else{
return false;
}
}
public function __set($property,$value){
if(isset($this->__data[$property])){
return $this->__data[$property] = $value;
}else{
return false;
}
}
public function __isset($property){
if(isset($this->__data[$property])){
return true;
}else{
return false;
}
}
public function __unset($property){
if(isset($this->__data[$property])){
return unset($this->__data[$property]);
}else{
return false;
}
}
}
$test = new Person;
$test->email= 'test';
var_dump($test->email);
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