Metadata component

With the introduction of attributes, PHP allows to the developers to add additional metadata to the classes, methods, properties and function parameters using native syntax.

Even though there is built-in reflection support for attributes, it lacks some functionality that would make it easier to work with them.

This library allows you to:

• Check if class has specific attribute, get class attribute instance(s).

• Get class members (properties and methods) that are marked with specific attribute.

• Read attribute instance(s) from class members (properties and methods).

In general, this library supports building other useful libraries that rely on metadata defined using PHP attributes, such as behavior implementations for Doctrine entities (e.g. timestampable, soft deletable, blameable, etc.).

Table of Contents

• Installation
• Supported features
• Reading metadata
• Inspiration

Example

Read a property marked with Deletable attribute from an entity and check if it is marked as deleted.

<?php

$deleted = $reader->property($entity, Deletable::class)->read($entity);

See Inspiration for a full example of how to use the library to implement, per example, timestampable behavior for Doctrine entities.