Enforce the Disposal of Objects in PHP

 The using PHP package by Ryan Chandler enforces the disposal of objects in PHP. Inspired by Hack and C#, this package is useful when working with file handles:

The package contains a Disposable interface and a global using() function to ensure object disposal.

Given the following class in the readme:

 1use RyanChandler\Using\Disposable;
 2 
 3class TextFile implements Disposable
 4{
 5    private $resource;
 6 
 7    public function dispose(): void
 8    {
 9        $this->resource = fclose($this->resource);
10    }
11}

The using() helper ensures the dispose() method is called even in the event of an exception via finally:

 1// Simple `using()` implementation
 2function using(Disposable $disposable, callable $callback): void
 3{
 4    try {
 5        $callback($disposable);
 6    } finally {
 7        $disposable->dispose();
 8    }
 9}
10 
11// Example usage
12$file = new TextFile('hello.txt');
13using($file, function (TextFile $file) {
14    DB::create('messages', [
15        'message' => $file->contents(),
16    ]);
17});
18 
19// The `$resource` property is no-longer a valid stream,
20// since we closed the handle in the `dispose` method.
21var_dump($file->resource);

You can learn more about this package, get full installation instructions, and view the source code on GitHub. In C#, you can learn more about the using statement, which inspired this package.