/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

0 vote137 views1 answer
Select randomly from mysqli php
PHP
0 vote116 views1 answer
Laravel download file from storage with progress bar
PHP Laravel
0 vote145 views1 answer
Php post variables to another page with submit button php
PHP
6 votes146 views2 answers
Laravel migration make column nullable
PHP
0 vote139 views3 answers
Multiple value match in array php
PHP
2 votes131 views1 answer
Add id to route name in laravel blade
PHP
0 vote154 views3 answers
Run queue after x minutes laravel
PHP Laravel
0 vote132 views3 answers
Check if any values are the same in an array php
PHP
2 votes159 views1 answer
Multiple routes same controller laravel
PHP Laravel
-1 vote126 views2 answers
Laravel latest
PHP