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Public Access Modifier:-
Public Method or variable can be accessed from anywhere in the class. It means from inside or outside the class and child class also means anywhere you can access.
| <?php | |
| class demo{ | |
| public $name="This is accessile from inside"; //public method of the class example | |
| function display() | |
| { | |
| echo $this->name."<br/>"; //accessible from inside | |
| } | |
| } | |
| $obj = new demo; | |
| $obj->display(); | |
| //second example | |
| class example { | |
| public $abc; | |
| public function name($a=0) { | |
| $this->abc = $a; | |
| } | |
| } | |
| $object = new example(); | |
| $object->name('This is accessible from outside'); //public method of the class example | |
| echo $object->abc; //accessible from outside | |
| ?> |
by Private Access Modifier:-
Private Method or Property can be only access inside the class. If you can access from show error this is not accessible from outside.
| <?php | |
| class example{ | |
| private $a; //This is Private Access Modifier | |
| public function display(){ | |
| // $this->a = 30; | |
| echo "This is Private Access Modifier $this->a"; | |
| } | |
| } | |
| $object = new example; | |
| // $object->a; //here, private Access modifier so, can't access this place | |
| $object->display(); | |
| ?> |
Protected Access Modifier:-
Protected Access Modifier:-
Protected Access Modifier Method or Property is only useful in case of inheritance and interface. Here you can access in only within class or child class.
| <?php | |
| //Protected Access modifier | |
| class Mobile{ | |
| protected $a; //This is Protected Access Modifier | |
| public function displayParent(){ | |
| // $this->a = 30; | |
| // echo "This is parent $this->a"; | |
| } | |
| } | |
| // $obj = new Mobile; | |
| // $obj->a; //here, protected access modifer so, access this place | |
| // $obj->displayParent(); | |
| class Nokia extends Mobile{ | |
| // protected $a; | |
| public function displayChild(){ | |
| $this->a = 30; //here, protected access modifer so, access this place | |
| // echo "This is child $this->a"; | |
| echo "This is child $this->a"; | |
| } | |
| } | |
| $obj = new Nokia; | |
| $obj->displayChild(); | |
| // $obj->a; | |
| ?> |
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