Thread: Php oop!

Originally Posted by softwarefreak [Only registered and activated users can see links. Click Here To Register...]

$this represents the object inside the class
i think "$this" represent non-static call , don't get me wrong, I'm an noob willing to learn :P

none of us is wrong technically/programatically...

"this" represent an non-static call to an object/method/variable bla bla bla etc... thanks for correction Dude :cheers:

im a noob at oop ..... how do you call for a function within a function within the same class ?

Originally Posted by something else [Only registered and activated users can see links. Click Here To Register...]

im a noob at oop ..... how do you call for a function within a function within the same class ?

Not oop: function_name();

Oop: $this->function_name();

I mean if i have got a class like:

PHP Code:

<? 
class someclass{

funtion function1(){
 //do something here
}

funtion function2(){
  //how do i use function1 here?
// $someclass->function1();  //tried this and it caused errors
// or is it $this->function1(); //i havent tried using this
}

}
?>

example OOP wapcreate.com is pure OOP and is built upon MVC architecture

PHP Code:


class Car {

private $carname;
private $caryear;
public object;

public function __construct($carname, $caryear)
{
   self::setName($carname); //this could also be done using $this->setName($carname) or Car::setName($carname)
   self::setYear($caryear);
}

public function setYear($y)
{
   $this->caryear = $y;
}

public function setName($n)
{
   $this->carname = $n;
}


public function getName()
{
   return $this->carname;
}

public function getYear()
{
  return $this->caryear;
}

}; // the semicolon is not needed here

usage of this class will be 

$car = new Car("Lamboginy", "2010");

you can now use the get methods to access properties of this class

like if you wanted to print the year of the car it will be like

echo $car->getYear(); will print 2010;

you can also have objects within other objects like 

$car->object = new Car("BMW", "2011");

echo $car->object->getName(); will print BMW 


PHP Code:

<? 
class someclass{

function function1(){
 //do something here
}

function function2(){

$this->function1();
}

}
?>

or outside

PHP Code:

$c = new someclass;
$c->function1();
$c->function2(); 


call function3 in a class which is not inside the class:

PHP Code:

<? 
function function3()
{
return 'do something';
}

class someclass{

function function1(){
 //do something here
}

function function2(){
$something_inside = $this->function1();
$something_outside = function3();
}

}
?>

im guessing if you have got 2 classes then to use a function from the second class in the first class function you would use the same method as calling it outside the class?
eg:

PHP Code:

<?
class someclass{

function function1(){
$c = new someclass2; 
$c->function2();
}

}

class someclass2{

funtion function2(){

}

}
?>

That is one way at something else

or you can do it by extending the first class by the second one

for example

PHP Code:



class Class1{

public function functionInClassOne()
{
echo "hello worlds";
}



}


class Class2 extends Class1{

public function printHelloWorld()
{
   $this->functionInClassOne(); //this will use the methods in class 1 because u have extended it
}

}

so instance would be 

$instance = new Class2;

$instance->printHelloWorld(); 


as easy as it gets