32 Questions
What is the primary purpose of file uploading in PHP?
Handling user-submitted files
What does the unset() function do in PHP?
Removes a variable
Which PHP superglobal variable is used to process uploaded files?
$_FILES
What enctype attribute value should be set in the HTML form for file uploads?
multipart/form-data
Which PHP function is commonly used to move an uploaded file to a specific directory?
move_uploaded_file()
In PHP, what does the $_FILES['file']['error'] represent after an unsuccessful file upload?
NoOutput
What is the purpose of the tmp_name field in the $_FILES array?
Temporary name assigned to the uploaded file
Which PHP configuration directive specifies the maximum allowed size for uploaded files?
$upload_max_filesize
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
When using sessions in PHP, where are the session variables stored by default?
In memory on the server
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
What security measure can be implemented to mitigate session hijacking in PHP?
session_destroy()
What is the primary purpose of cookies in PHP?
setcookie()
What is the primary function of the PHP $_GET superglobal in form handling?
Retrieves data from the form with the GET method
When integrating PHP forms with a database, which function is commonly used to execute SQL queries?
mysqli_query()
What are the key differences between $_GET and $_POST in PHP form handling?
$_GET and $_POST will send this file, too.
What is the primary purpose of the unset() function in PHP?
To remove a variable
What is the primary purpose of file uploading in PHP?
Handling user-submitted files
Which PHP superglobal variable is used to process uploaded files?
$_FILES
How do you declare a function in PHP?
functionName() {}
Which keyword is used to return a value from a function in PHP?
returning
How can you pass a variable by reference to a function in PHP?
&$var
What is the purpose of the tmp_name field in the $_FILES array?
Temporary name assigned to the uploaded file
Which PHP configuration directive specifies the maximum allowed size for uploaded files?
upload_max_filesize
Where are the session variables stored by default when using sessions in PHP?
In memory on the server
What security measure can be implemented to mitigate session hijacking in PHP?
Use the $_SESSION superglobal
How can you delete a cookie in PHP?
By setting an expired time in the past with setcookie()
What is the primary function of the PHP $_GET superglobal in form handling?
Retrieves data from the form with the GET method
What is the primary purpose of cookies in PHP?
To store data on the client's browser
When integrating PHP forms with a database, which function is commonly used to execute SQL queries?
mysqli_query()
What are the key differences between $_GET and $_POST in PHP form handling?
$_POST
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
Test your knowledge of PHP functions and file uploading with this quiz. Questions cover topics such as the unset() function, user-defined functions, and the primary purpose of file uploading in PHP.
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