PHP: How can I access / use a method within its own class?

Question

I am trying to figure out how to use a method within its own class. example:

class demoClass
{
    function demoFunction1()
    {
        //function code here
    }

    function demoFunction2()
    {
        //call previously declared method
        demoFunction1();
    }
}

The only way that I have found to be working is when I create a new intsnace of the class within the method, and then call it. Example:

class demoClass
{
    function demoFunction1()
    {
        //function code here
    }

    function demoFunction2()
    {
        $thisClassInstance = new demoClass();
        //call previously declared method
        $thisClassInstance->demoFunction1();
    }
}

but that does not feel right... or is that the way? any help?

thanks

jasonbar · Accepted Answer · 2010-03-02 18:03:14Z

16

$this-> inside of an object, or self:: in a static context (either for or from a static method).

answered Mar 2, 2010 at 18:03

jasonbar

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Comments

Gumbo · Accepted Answer · 2010-03-02 18:00:13Z

8

You need to use $this to refer to the current object:

The pseudo-variable $this is available when a method is called from within an object context. $this is a reference to the calling object (usually the object to which the method belongs, but possibly another object, if the method is called statically from the context of a secondary object).

So:

class demoClass
{
    function demoFunction1()
    {
        //function code here
    }

    function demoFunction2()
    {
        // $this refers to the current object of this class
        $this->demoFunction1();
    }
}

answered Mar 2, 2010 at 18:00

Gumbo

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Comments

a'r · Accepted Answer · 2010-03-02 18:02:29Z

5

Just use:

$this->demoFunction1();

answered Mar 2, 2010 at 18:02

a'r

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Comments

Sarfraz · Accepted Answer · 2010-03-02 18:03:58Z

5

Use $this keyword to refer to current class instance:

class demoClass
{
    function demoFunction1()
    {
        //function code here
    }

    function demoFunction2()
    {
        $this->demoFunction1();
    }
}

answered Mar 2, 2010 at 18:03

Sarfraz

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Comments

Jage · Accepted Answer · 2010-03-02 18:00:36Z

4

Use "$this" to refer to itself.

class demoClass
{
    function demoFunction1()
    {
        //function code here
    }

    function demoFunction2()
    {
        //call previously declared method
        $this->demoFunction1();
    }
}

answered Mar 2, 2010 at 18:00

Jage

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