You want to get a query parameter filter in Laravel but provide a default value of all if it is missing or empty. Which code correctly handles this?

hard📝 Application Q15 of 15

Laravel - Request and Response

You want to get a query parameter filter in Laravel but provide a default value of all if it is missing or empty. Which code correctly handles this?

A$filter = $request->query('filter') ?: 'all';

B$filter = $request->input('filter', 'all');

C$filter = $request->query('filter', 'all');

D$filter = $request->query('filter') ?? 'all';

Step-by-Step Solution

Solution:

Step 1: Understand default value behavior in query()
The second argument in query('filter', 'all') returns 'all' only if the parameter is missing, but not if empty.
Step 2: Handle empty values as well
Using $request->query('filter') ?: 'all' returns 'all' if the parameter is missing or empty (falsy).
Step 3: Check other options
$filter = $request->input('filter', 'all'); uses input() which includes POST data, not just query. $filter = $request->query('filter') ?? 'all'; uses null coalescing which does not treat empty string as missing.
Final Answer:
$filter = $request->query('filter') ?: 'all'; -> Option A
Quick Check:
Use ?: to handle missing or empty query params = C [OK]

Quick Trick: Use ?: to cover missing or empty query parameters [OK]

Common Mistakes:

Assuming default in query() covers empty strings
Using input() which mixes POST and query data
Using ?? which ignores empty strings

Master "Request and Response" in Laravel

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Perf

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions

More Laravel Quizzes

You want to get a query parameter filter in Laravel but provide a default value of all if it is missing or empty. Which code correctly handles this?

Step 1: Understand default value behavior in query()

Step 2: Handle empty values as well

Step 3: Check other options

Final Answer:

Quick Check:

Want More Practice?