Correct query
Correct the query
NULL handling, aggregates, anti-joins and OR precedence in SQL and Eloquent.
Intermediate5 questions
Quizzes
Short PHP and Laravel quizzes: guess the output, find the bug, fix the query. Every answer key is verified before a quiz is published. No account needed.
- Find bug
Find the bug: everyday PHP
Four short snippets that look right and are not.
Intermediate4 questions - Security
Spot the security bug
Injection, mass assignment, output escaping and password storage in everyday Laravel code.
Intermediate5 questions - Eloquent optimization
Eloquent query performance
N+1 queries, counting, plucking and chunking: pick the option that does less work.
Intermediate5 questions