PHP Functions and File Uploading Quiz

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What is the primary purpose of file uploading in PHP?

Executing PHP functions

Storing variables

Handling user-submitted files (correct)

Removing variables

What does the unset() function do in PHP?

Handles user-submitted files

Executes a file

Stores a variable

Removes a variable (correct)

Which PHP superglobal variable is used to process uploaded files?

$_GET

$_REQUEST

$_FILES (correct)

$_POST

What enctype attribute value should be set in the HTML form for file uploads?

multipart/form-data Signup and view all the answers

Which PHP function is commonly used to move an uploaded file to a specific directory?

move_uploaded_file() Signup and view all the answers

In PHP, what does the $_FILES['file']['error'] represent after an unsuccessful file upload?

NoOutput Signup and view all the answers

What is the purpose of the tmp_name field in the $_FILES array?

Temporary name assigned to the uploaded file Signup and view all the answers

Which PHP configuration directive specifies the maximum allowed size for uploaded files?

$upload_max_filesize Signup and view all the answers

What is the main advantage of using sessions over cookies for storing user data?

Sessions are more secure as data is stored on the server Signup and view all the answers

When using sessions in PHP, where are the session variables stored by default?

In memory on the server Signup and view all the answers

Why is it important to validate the file type and size when handling file uploads in PHP forms?

To prevent security risks and ensure data integrity Signup and view all the answers

What security measure can be implemented to mitigate session hijacking in PHP?

session_destroy() Signup and view all the answers

What is the primary purpose of cookies in PHP?

<code>setcookie()</code> Signup and view all the answers

What is the primary function of the PHP `$_GET` superglobal in form handling?

Retrieves data from the form with the GET method Signup and view all the answers

When integrating PHP forms with a database, which function is commonly used to execute SQL queries?

<code>mysqli_query()</code> Signup and view all the answers

What are the key differences between `$_GET` and `$_POST` in PHP form handling?

<code>$_GET</code> and <code>$_POST</code> will send this file, too. Signup and view all the answers

What is the primary purpose of the unset() function in PHP?

To remove a variable Signup and view all the answers

What is the primary purpose of file uploading in PHP?

Handling user-submitted files Signup and view all the answers

Which PHP superglobal variable is used to process uploaded files?

$_FILES Signup and view all the answers

How do you declare a function in PHP?

functionName() {} Signup and view all the answers

Which keyword is used to return a value from a function in PHP?

returning Signup and view all the answers

How can you pass a variable by reference to a function in PHP?

&$var Signup and view all the answers

What is the purpose of the tmp_name field in the $_FILES array?

Temporary name assigned to the uploaded file Signup and view all the answers

Which PHP configuration directive specifies the maximum allowed size for uploaded files?

upload_max_filesize Signup and view all the answers

Where are the session variables stored by default when using sessions in PHP?

In memory on the server Signup and view all the answers

What security measure can be implemented to mitigate session hijacking in PHP?

Use the $_SESSION superglobal Signup and view all the answers

How can you delete a cookie in PHP?

By setting an expired time in the past with setcookie() Signup and view all the answers

What is the primary function of the PHP $_GET superglobal in form handling?

Retrieves data from the form with the GET method Signup and view all the answers

What is the primary purpose of cookies in PHP?

To store data on the client's browser Signup and view all the answers

When integrating PHP forms with a database, which function is commonly used to execute SQL queries?

<code>mysqli_query()</code> Signup and view all the answers

What are the key differences between `$_GET` and `$_POST` in PHP form handling?

<code>$_POST</code> Signup and view all the answers

What is important to validate regarding file type and size when handling file uploads in PHP forms?

To prevent security risks and ensure data integrity Signup and view all the answers

PHP Functions and File Uploading Quiz

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Questions and Answers

What is the primary purpose of file uploading in PHP?

What does the unset() function do in PHP?

Which PHP superglobal variable is used to process uploaded files?

What enctype attribute value should be set in the HTML form for file uploads?

Which PHP function is commonly used to move an uploaded file to a specific directory?

In PHP, what does the $_FILES['file']['error'] represent after an unsuccessful file upload?

What is the purpose of the tmp_name field in the $_FILES array?

Which PHP configuration directive specifies the maximum allowed size for uploaded files?

What is the main advantage of using sessions over cookies for storing user data?

When using sessions in PHP, where are the session variables stored by default?

Why is it important to validate the file type and size when handling file uploads in PHP forms?

What security measure can be implemented to mitigate session hijacking in PHP?

What is the primary purpose of cookies in PHP?

What is the primary function of the PHP $_GET superglobal in form handling?

When integrating PHP forms with a database, which function is commonly used to execute SQL queries?

What are the key differences between $_GET and $_POST in PHP form handling?

What is the primary purpose of the unset() function in PHP?

What is the primary purpose of file uploading in PHP?

Which PHP superglobal variable is used to process uploaded files?

How do you declare a function in PHP?

Which keyword is used to return a value from a function in PHP?

How can you pass a variable by reference to a function in PHP?

What is the purpose of the tmp_name field in the $_FILES array?

Which PHP configuration directive specifies the maximum allowed size for uploaded files?

Where are the session variables stored by default when using sessions in PHP?

What security measure can be implemented to mitigate session hijacking in PHP?

How can you delete a cookie in PHP?

What is the primary function of the PHP $_GET superglobal in form handling?

What is the primary purpose of cookies in PHP?

When integrating PHP forms with a database, which function is commonly used to execute SQL queries?

What are the key differences between $_GET and $_POST in PHP form handling?

What is important to validate regarding file type and size when handling file uploads in PHP forms?

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