PHP process model per request - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start a PHP script that outputs a simple message.

PHP

<?php
 echo [1];
?>

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

Aecho "Hello, world!"

B'Hello, world!'

CHello, world!

D"Hello, world!"

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around the string.

Trying to echo without quotes.

The echo statement requires a string in quotes to output text. So, "Hello, world!" is correct.

2fill in blank

medium

Complete the code to define a variable holding the current request method.

PHP

<?php
 $method = [1]['REQUEST_METHOD'];
?>

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

A$_POST

B$_SERVER

C$_GET

D$_REQUEST

Attempts:

3 left

💡 Hint

Common Mistakes

Using $_GET or $_POST which hold user input, not server info.

Using $_REQUEST which combines GET, POST, and COOKIE.

The $_SERVER superglobal contains server and execution environment information, including the request method.

3fill in blank

hard

Fix the error in the code that tries to start a session per request.

PHP

<?php
 [1]();
 // session code here
?>

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

Asession_start

Bstart_session

Cbegin_session

DsessionBegin

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect function names like start_session().

Forgetting the underscore in the function name.

The correct PHP function to start a session is session_start(). Other options are invalid function names.

4fill in blank

hard

Fill both blanks to create an associative array with request method and URI.

PHP

<?php
 $request = [
   'method' => [1],
   'uri' => [2]
 ];
?>

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

A$_SERVER['REQUEST_METHOD']

B$_SERVER['REQUEST_URI']

C$_GET['REQUEST_METHOD']

D$_GET['REQUEST_URI']

Attempts:

3 left

💡 Hint

Common Mistakes

Using $_GET instead of $_SERVER for these values.

Mixing REQUEST_METHOD and REQUEST_URI incorrectly.

$_SERVER holds both REQUEST_METHOD and REQUEST_URI. $_GET does not contain these server variables.

5fill in blank

hard

Fill all three blanks to create a response array with status, headers, and body.

PHP

<?php
 $response = [
   'status' => [1],
   'headers' => [2],
   'body' => [3]
 ];
?>

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

A200

B['Content-Type' => 'text/html']

C"<h1>Hello</h1>"

D404

Attempts:

3 left

💡 Hint

Common Mistakes

Using status as a string instead of a number.

Not using an array for headers.

Forgetting quotes around the body string.

The status code 200 means OK, headers is an associative array with content type, and body is a string with HTML content.