Accessing request data in Laravel - Cheat Sheet & Quick Revision

Recall & Review

beginner

How do you retrieve a single input value named 'email' from a request in Laravel?

Use $request->input('email') or $request->get('email') to get the value of 'email' from the request.

beginner

What method do you use to get all input data from a Laravel request?

Use $request->all() to retrieve all input data sent with the request as an associative array.

intermediate

How can you check if a specific input key exists in a Laravel request?

Use $request->has('key'). It returns true if the input key exists and is not empty.

intermediate

What is the difference between $request->input('key') and $request->query('key')?

$request->input('key') retrieves input from any source (GET, POST, JSON, etc.), while $request->query('key') only retrieves data from the query string (URL parameters).

intermediate

How do you retrieve JSON data sent in the body of a Laravel request?

Use $request->json()->all() to get all JSON data as an array, or $request->json('key') to get a specific JSON key value.

Which method retrieves all input data from a Laravel request?

A $request->inputAll()

B $request->getAll()

C $request->all()

D $request->fetch()

The correct method to get all input data is $request->all().

How do you check if the request contains a key named 'username'?

A $request->exists('username')

B $request->has('username')

C $request->contains('username')

D $request->check('username')

$request->has('username') checks if the input key exists and is not empty.

What does $request->query('page') return?

A Input from POST data

B Input from any source

C Input from JSON body

D Input from URL query parameters

$request->query('page') retrieves data only from the URL query string.

Which method retrieves a single input value named 'email'?

A Both A and C

B $request->get('email')

C $request->input('email')

D $request->fetch('email')

Both $request->get('email') and $request->input('email') retrieve the 'email' input value.

How do you access JSON data sent in the request body?

A $request->json()->all()

B $request->input('json')

C $request->getJson()

D $request->body()

Use $request->json()->all() to get all JSON data from the request body.

Explain how to retrieve input data from a Laravel request and how to check if a key exists.

Think about methods to get single values, all data, and check keys.

Describe the difference between retrieving query string data and general input data in Laravel requests.

Consider where the data comes from in each method.