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README.md

A trait to dynamically add methods to a class

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This package provides a trait that, when applied to a class, makes it possible to add methods to that class at runtime.

Here's a quick example:

$myClass = new class() {
    use Spatie\Macroable\Macroable;
};

$myClass::macro('concatenate', function(... $strings) {
   return implode('-', $strings);
});

$myClass->concatenate('one', 'two', 'three'); // returns 'one-two-three'

The idea of a macroable trait and the implementation is taken from the macroable trait of the Laravel framework.

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Learn how to create a package like this one, by watching our premium video course:

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We invest a lot of resources into creating best in class open source packages. You can support us by buying one of our paid products.

We highly appreciate you sending us a postcard from your hometown, mentioning which of our package(s) you are using. You'll find our address on our contact page. We publish all received postcards on our virtual postcard wall.

Installation

You can install the package via composer:

composer require spatie/macroable

Usage

You can add a new method to a class using macro:

$macroableClass = new class() {
    use Spatie\Macroable\Macroable;
};

$macroableClass::macro('concatenate', function(... $strings) {
   return implode('-', $strings);
};

$macroableClass->concatenate('one', 'two', 'three'); // returns 'one-two-three'

Callables passed to the macro function will be bound to the class

$macroableClass = new class() {
    
    protected $name = 'myName';
    
    use Spatie\Macroable\Macroable;
};

$macroableClass::macro('getName', function() {
   return $this->name;
};

$macroableClass->getName(); // returns 'myName'

You can also add multiple methods in one go by using a mixin class. A mixin class contains methods that return callables. Each method from the mixin will be registered on the macroable class.

$mixin = new class() {
    public function mixinMethod()
    {
       return function() {
          return 'mixinMethod';
       };
    }
    
    public function anotherMixinMethod()
    {
       return function() {
          return 'anotherMixinMethod';
       };
    }
};

$macroableClass->mixin($mixin);

$macroableClass->mixinMethod() // returns 'mixinMethod';

$macroableClass->anotherMixinMethod() // returns 'anotherMixinMethod';

Changelog

Please see CHANGELOG for more information on what has changed recently.

Testing

composer test

Contributing

Please see CONTRIBUTING for details.

Security

If you discover any security related issues, please email freek@spatie.be instead of using the issue tracker.

Postcardware

You're free to use this package (it's MIT-licensed), but if it makes it to your production environment we highly appreciate you sending us a postcard from your hometown, mentioning which of our package(s) you are using.

Our address is: Spatie, Kruikstraat 22, 2018 Antwerp, Belgium.

We publish all received postcards on our company website.

Credits

Idea and code is taken from the macroable trait of the Laravel framework.

License

The MIT License (MIT). Please see License File for more information.

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