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copied!<p>The return value of <code>Container::share()</code> is a function that takes one argument: the container itself. In order to call it externally, you'd have to do this:</p> <pre><code>$closure = function ($container) { var_dump($container); }; $container = new Illuminate\Container\Container(); call_user_func($container->share($closure), $container); </code></pre> <p>The reason for this is due to how service definitions work. The intended use of <code>share</code> is to wrap around a service definition.</p> <p>Like this:</p> <pre><code>$container = new Illuminate\Container\Container(); $container['foo'] = $container->share(function ($container) { return new Foo(); }); </code></pre> <p>When you access a service, like this:</p> <pre><code>var_dump($container['foo']); </code></pre> <p>It checks if the value is callable, and if it is, it will try to call it as a function. If you leave off the <code>share</code>, you will get a new <code>Foo</code> instance every time. The <code>share</code> memoizes the instance and returns the same one every time.</p> <p>To re-iterate, the <code>$container</code> argument in the function returned from <code>share</code> is there because that's how service creation works. The service definition ("factory" function that you "set" on the container) is just a function that takes a container and returns the instance of the service it is creating.</p> <p>Since <code>offsetGet()</code> it is expecting the definition to take a <code>$container</code> argument, that's what <code>share</code> returns.</p>

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