CODEWITHSUNDEEP
php
MCN
MCN

Reputation: 123

PHP Accessing parent class function variables

class A
{
    public function child1()
    {
        $var1 = 'abc';
    }
}

class B extends A
{
    public function child1()
    {
        echo parent::$var1; // Return error undefined class constant 'var1'
    }
}

How can i access $var1 in this situation ? Expected result: 'abc'

Upvotes: 1

Views: 49

Answers (2)

Nadir Latif
Nadir Latif

Reputation: 3763

You need to make $var1 a class property. See following code:

<?php
    class A
    {
        protected $var1;
        public function child1()
        {
            $this->var1 = 'abc';
        }
    }

    class B extends A
    {
        public function child1()
        {
            parent::child1();
            echo $this->var1;
        }
    }
$b = new B();
$b->child1();    
?>

Upvotes: 1

Regolith
Regolith

Reputation: 2971

First you cannot do class B extends class A. The correct syntax would be class B extends A:

class A
{
    public function child1()
    {
        $var1 = 'abc';
        return $var1;
    }
}

class B extends A
{
    public function child1()
    {
        echo parent::child1(); 
    }
}

$temp = new B;
$temp->child1();

Now what I've done is return the $var1 in your class A.

You cannot call echo parent::$var1; because it is inside a function, so you call the parent function echo parent::child1();.

working example here

Upvotes: 1

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