PHP Advanced Quiz

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Test PHP Advanced concepts such as OOP, PDO, JSON, Try-catch, Filters, SESSION, and COOKI.

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Alaa Adel

Egypt

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PHP Advanced Quiz


Froggy Jumps PHP Advanced QuizOnline version Test PHP Advanced concepts such as OOP, PDO, JSON, Try-catch, Filters, SESSION, and COOKI. by Alaa Adel 1 Which PHP function decodes a JSON string into an associative array when true is passed as the second parameter? a json_parse($str, true) b json_decode($str, true) c json_encode($str, true) 2 Which PHP function encodes a value to a JSON string? a json_parse b encode_json c json_encode 3 Which filter validates an email address in PHP? a FILTER_VALIDATE_EMAIL b FILTER_SANITIZE_EMAIL c FILTER_VALIDATE_URL 4 Which filter option validates a URL in PHP? a FILTER_SANITIZE_URL b FILTER_VALIDATE_EMAIL c FILTER_VALIDATE_URL 5 What does PDO stand for? a PHP Direct Objects b PHP Database Objects c PHP Data Objects 6 Which is the correct way to create a PDO connection? a new PDOConnection($dsn, $user, $password) b new mysqli($dsn, $user, $password) c new PDO($dsn, $user, $password) 7 Which method is used for SQL statements with placeholders? a query() b prepare() c exec() 8 Which is best practice for user input with PDO? a Using exec() with values b Directly embedding in query c Prepare with bound parameters 9 Which visibility allows access inside the class and its descendants? a private b protected c public 10 Which method is called automatically when an object is created? a __init b __construct c constructor 11 What keyword enables inheritance from a parent class? a extends b inherits c implements 12 What is a class function called inside a class? a Method b Function c Subroutine 13 Which keyword starts a block that handles exceptions in PHP? a catch b throw c try 14 Which keyword is used to catch exceptions in PHP? a catch b try c finally 15 In PHP, a try block must be followed by at least one catch or finally. a Depends on the PHP version b True c False 16 What does the finally block do in PHP? a Runs code regardless of whether an exception occurred b Skips on exception c Runs only on success 17 Where are PHP session data stored by default? a In the browser cookies b In the client's RAM c On the server as files 18 Which superglobal holds session data? a $_SERVER b $_COOKIE c $_SESSION 19 How do you set a cookie in PHP? a create_cookie() b set_session() c setcookie() 20 Which function ends a session and clears data? a session_destroy() b end_session() c logout() 21 Do you need to call session_start() before using $_SESSION? a Only if cookies are enabled b No, it's automatic c Yes, you must call it

PHP Advanced Quiz

Froggy Jumps

About this activity

Created by

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PHP Advanced QuizOnline version

by Alaa Adel

Which PHP function decodes a JSON string into an associative array when true is passed as the second parameter?

Which PHP function encodes a value to a JSON string?

Which filter validates an email address in PHP?

Which filter option validates a URL in PHP?

What does PDO stand for?

Which is the correct way to create a PDO connection?

Which method is used for SQL statements with placeholders?

Which is best practice for user input with PDO?

Which visibility allows access inside the class and its descendants?

Which method is called automatically when an object is created?

What keyword enables inheritance from a parent class?

What is a class function called inside a class?

Which keyword starts a block that handles exceptions in PHP?

Which keyword is used to catch exceptions in PHP?

In PHP, a try block must be followed by at least one catch or finally.

What does the finally block do in PHP?

Where are PHP session data stored by default?

Which superglobal holds session data?

How do you set a cookie in PHP?

Which function ends a session and clears data?

Do you need to call session_start() before using $_SESSION?