/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

1 vote279 views1 answer
Kill laravel server
PHP
0 vote284 views2 answers
General error: 1215 Cannot add foreign key constraint laravel
PHP Laravel
0 vote275 views1 answer
First-class Callable Syntax - PHP 8.1
PHP
7 votes322 views1 answer
Laravel wher in
PHP Laravel
0 vote263 views1 answer
Default php email prot
PHP
0 vote262 views1 answer
Php if simple
PHP
29 votes264 views4 answers
Php else
PHP
16 votes290 views3 answers
Php unique random number
PHP
0 vote280 views1 answer
Big int php
PHP
0 vote338 views1 answer
Disable cors laravel
PHP Laravel