/PHP/What is the purpose of an abstract?

What is the purpose of an abstract?

abstract class AbstractDonater
{
    public function donateMinimum(): void
    {
        // this method can be complex
        $minimum = 10;
        $this->donate($minimum)
    }
    abstract protected function donate(int $money);
} 

class ConcreteDonaterOne 
{
    protected function donate(int $money)
    {
        $donateProvider = new PlayPal();
        $donateProvider->pay($money);
    }
}

class ConcreteDonaterTwo 
{
    protected function donate(int $money)
    {
        $donateProvider = new Scribe();
        $donateProvider->transfer($money);
    }
}
$donaters = [
    new ConcreteDonaterOne(),
    new ConcreteDonaterTwo(),

];

foreach ($donaters as $donater)
{
    $donater->donateMinimum();
}

Source: stackoverflow.com

Similar codes

53 votes163 views5 answers
How to check laravel version
PHP
6 votes136 views2 answers
Laravel findorfail
PHP
0 vote148 views2 answers
Laravel use global variable in model
PHP
0 vote171 views1 answer
Laravel webmix scss
PHP
2 votes164 views1 answer
Laravel how to test email testing
PHP
0 vote114 views1 answer
Touches in laravel
PHP
0 vote138 views1 answer
Php extensions for apache2
PHP
61 votes138 views6 answers
Php delete array element
PHP
2 votes194 views2 answers
Symfony get current user
PHP
0 vote105 views1 answer
Session() in lumen
PHP