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Brandyn Lordi
17,778 Pointswhat is use($app) for?
And why is it needed?
Dpecifically this snippet:
$app->group('/api/v1/courses', function() use($app){
$app->get('', function (Request $request, Response $response, array $args) {
$result = $this->course->get_courses();
return $response->withJson($result, 200, JSON_PRETTY_PRINT);
});
$app->get('/{course_id}', function (Request $request, Response $response, array $args) {
$result = $this->course->get_course($args['course_id']);
return $response->withJson($result, 200, JSON_PRETTY_PRINT);
});
$app->group('/{course_id}/reviews', function() use($app){
$app->get('', function (Request $request, Response $response, array $args) {
$result = $this->review->getReviewsByCourseId($args['course_id']);
return $response->withJson($result, 200, JSON_PRETTY_PRINT);
});
$app->get('/{review_id}', function (Request $request, Response $response, array $args) {
$result = $this->review->getreview($args['review_id']);
return $response->withJson($result, 200, JSON_PRETTY_PRINT);
});
});
});
1 Answer
Alena Holligan
Treehouse TeacherYou are creating an anonymous function (an inline function that is only used in this particular spot)
function() use($app){
...
}
The use($app) portion makes that object available to the anonymous function.