How to inherit classes in php?

php method of inheriting classes: first create a PHP document and define a class; then instantiate the created Fruit; then create a blank subclass Apple and instantiate it; finally save the above content and Just use the browser to view the print of the subcategory.

php inheritance class method:

1. Create a PHP document and define a class, example:

class Fruit
{
    public $name = 'apple';
    public function __construct($name=''){
       echo '我是一个' . $this->name;
    }
}

2. Instantiate the Fruit you just created. Since there is a constructor in this class, the function will be called immediately after instantiation

3. Save the above content and view the print result in the browser

4. Create a blank subclass Apple and instantiate it , (the extends keyword must be used for inherited classes) Example:

class Apple extends Fruit
{
}
new Apple();

5. Save the above content and view the print of the subclass in the browser

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