/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 vote177 views1 answer
Laravel find or create new
PHP Laravel
0 vote165 views1 answer
Laravel find model inside the same model
PHP
0 vote164 views1 answer
Zip missing php install
PHP
1 vote177 views1 answer
Print url in view yii2
PHP
0 vote174 views1 answer
Change WordPress Login Logo Url
PHP
10 votes250 views2 answers
How to make primary key and foreign key in phpmyadmin
PHP
0 vote179 views1 answer
Install Older Version of Laravel using Composer
PHP Laravel
0 vote179 views1 answer
Wp get user meta
PHP Wordpress
0 vote152 views1 answer
How we show full name of month in posts
PHP
18 votes173 views5 answers
Alert in php
PHP