Optional parameters in Laravel - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a route with an optional parameter named 'id'.

Laravel

Route::get('/user/{id[1]', function ($id = null) {
    return $id ? "User ID: $id" : 'No ID provided';
});

Drag options to blanks, or click blank then click option'

A?

B+

C*

D!

Attempts:

3 left

💡 Hint

Common Mistakes

Using symbols like ! or * which are not valid for optional parameters.

Forgetting to provide a default value in the function parameter.

In Laravel, optional route parameters are marked with a question mark ? after the parameter name.

2fill in blank

medium

Complete the controller method signature to make the parameter 'page' optional with a default value of 1.

Laravel

public function showPage([1] $page = 1) {
    return "Showing page: $page";
}

Drag options to blanks, or click blank then click option'

Aarray

Bstring

Cbool

Dint

Attempts:

3 left

💡 Hint

Common Mistakes

Using a string type which may cause type errors.

Not specifying a type hint at all.

The parameter type int matches the expected page number and allows a default value.

3fill in blank

hard

Fix the error in the route definition by correctly marking the 'category' parameter as optional.

Laravel

Route::get('/products/{category[1]', function ($category = 'all') {
    return "Category: $category";
});

Drag options to blanks, or click blank then click option'

A?

B!

C*

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using symbols other than question mark for optional parameters.

Not providing a default value in the function.

The question mark ? after the parameter name makes it optional in Laravel routes.

4fill in blank

hard

Fill both blanks to define a route with an optional 'slug' parameter and a default value in the closure.

Laravel

Route::get('/post/{slug[1]', function ($slug [2] 'default-post') {
    return "Post slug: $slug";
});

Drag options to blanks, or click blank then click option'

A?

B=

C!

D:

Attempts:

3 left

💡 Hint

Common Mistakes

Using '!' or ':' instead of '?' for optional parameters.

Not assigning a default value in the closure parameter.

The question mark ? marks the parameter optional in the route, and the equals sign = sets the default value in the closure.

5fill in blank

hard

Fill all three blanks to create a controller method with an optional string parameter 'name' defaulting to 'Guest' and return a greeting.

Laravel

public function greet([1] $name [2] 'Guest') {
    return "Hello, [3]!";
}

Drag options to blanks, or click blank then click option'

Astring

B=

C$name

Dint

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong type hint like int.

Forgetting the default value assignment.

Not using the parameter variable in the return.

The parameter is typed as string, given a default value with =, and the variable $name is used in the return string.