Config files and access in Laravel - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of config files in Laravel?

Config files store settings and options for your Laravel app, like database info or app name. They help keep code clean and easy to change.

beginner

Where are Laravel config files stored?

All config files are in the config/ folder at the root of your Laravel project.

beginner

How do you access a config value in Laravel code?

Use the config() helper function with dot notation. For example, config('app.timezone') gets the timezone setting from config/app.php.

intermediate

What happens if you try to access a config key that does not exist?

Laravel returns null by default. You can provide a default value as a second argument to config() to avoid nulls.

intermediate

Why should sensitive data like passwords be stored in environment files instead of config files?

Environment files (.env) keep secrets out of code and config files. This helps keep sensitive info safe and makes it easy to change per environment.

Where do you find Laravel's config files?

A In the <code>config/</code> folder

B In the <code>resources/</code> folder

C In the <code>app/</code> folder

D In the <code>storage/</code> folder

Laravel stores all configuration files inside the config/ directory.

How do you get the app name from config in Laravel?

A config('name.app')

B getConfig('app.name')

C config('app.name')

D app()->config('name')

Use config('app.name') to access the app name from the config/app.php file.

What does Laravel return if a config key is missing and no default is given?

A null

B empty string

C false

D throws an error

Laravel returns null if the config key does not exist and no default value is provided.

Where should you store sensitive info like passwords in Laravel?

A In <code>config/app.php</code>

B In the <code>.env</code> file

C In <code>routes/web.php</code>

D In <code>public/</code> folder

Sensitive data should be stored in the .env file to keep it secure and separate from code.

How can you provide a default value when accessing a config key?

A config('key')->default('value')

B config('key').default('value')

C config('key').or('default')

D config('key', 'default')

You can pass a second argument to config() as a default value if the key is missing.

Explain how Laravel config files work and how you access their values in code.

Think about where settings live and how you read them.

Why is it important to keep sensitive data in environment files instead of config files in Laravel?

Consider safety and changing settings for different servers.