Stack/LazyHttpKernel

HttpKernelInterface lazy proxy.

This is useful in combination with something like UrlMap, where sub-kernels are only created conditionally.

Example

The basic example, assumes that app.php returns an instance of HttpKernelInterface:

use Stack\LazyHttpKernel;

$app = new LazyHttpKernel(function () {
    return require __DIR__.'/../app.php';
});

As a shortcut, you can use the Stack\lazy function:

use Stack;

$app = Stack\lazy(function () {
    return require __DIR__.'/../app.php';
});

When combined with the UrlMap middleware it makes a bit more sense:

use Stack;
use Stack\UrlMap;

$app = ...;

$app = new UrlMap($app, [
    '/foo' => Stack\lazy(function () {
        return require __DIR__.'/../app.php';
    })
]);