Is it possible to call a function from within a Class method?

Problem

I’ve been trying to find out how to do this but can’t seem to figure it out.

Here’s an example of what I’m attempting:

class test {
     public newTest(){
          function bigTest(){
               //Big Test Here
          }
          function smallTest(){
               //Small Test Here
          }
     }
     public scoreTest(){
          //Scoring code here;
     }
}

This is where I’m having trouble: how can I call bigTest()?

Asked by WAC0020

Solution #1

Try this one:

class test {
     public function newTest(){
          $this->bigTest();
          $this->smallTest();
     }

     private function bigTest(){
          //Big Test Here
     }

     private function smallTest(){
          //Small Test Here
     }

     public function scoreTest(){
          //Scoring code here;
     }
}

$testObject = new test();

$testObject->newTest();

$testObject->scoreTest();

Answered by Sergey Kuznetsov

Solution #2

The example you gave is invalid PHP and contains the following flaws:

public scoreTest() {
    ...
}

is not a valid function declaration; functions must be declared using the ‘function’ keyword.

Instead, the syntax should be:

public function scoreTest() {
    ...
}

Second, enclosing the bigTest() and smallTest() routines in a public function() does not make them private; you must put the private keyword on each of these functions separately:

class test () {
    public function newTest(){
        $this->bigTest();
        $this->smallTest();
    }

    private function bigTest(){
        //Big Test Here
    }

    private function smallTest(){
           //Small Test Here
    }

    public function scoreTest(){
      //Scoring code here;
    }
}

In class declarations, it is also customary to capitalize class names (‘Test’).

Hope that helps.

Answered by pjbeardsley

Solution #3

class test {
    public newTest(){
        $this->bigTest();
        $this->smallTest();
    }

    private  function bigTest(){
        //Big Test Here
    }

    private function smallTest(){
       //Small Test Here
    }

    public scoreTest(){
      //Scoring code here;
    }
 }

Answered by Meganathan S

Solution #4

I believe you’re looking for something similar to this.

class test {

    private $str = NULL;

    public function newTest(){

        $this->str .= 'function "newTest" called, ';
        return $this;
    }
    public function bigTest(){

        return $this->str . ' function "bigTest" called,';
    }
    public function smallTest(){

        return $this->str . ' function "smallTest" called,';
    }
    public function scoreTest(){

        return $this->str . ' function "scoreTest" called,';
    }
}

$test = new test;

echo $test->newTest()->bigTest();

Answered by Ali Hasan

Solution #5

You must “point” to any method of an object instantiated from a class (with statement new) in order to call it. You simply use the resource produced by the new statement from the outside. PHP stores the same resource into the $this variable inside any object created by new. As a result, you must use $this to point to the method within a class. To call smallTest from within your class, you must tell PHP which of the objects created by the new statement you want to run, simply write:

$this->smallTest();

Answered by Ingeniero

Post is based on https://stackoverflow.com/questions/1725165/calling-a-function-within-a-class-method