explode() function in PHP?
explode() function in PHP is used to split a string into an array based on a specified delimiter.
What is the purpose of the isset() function in PHP when handling form submissions?
A). To check if a variable is empty
B). To check if a variable is set and is not NULL
C). To check if a variable is numeric
D). To convert a variable to a string
What type of attribute is used in an HTML form to specify where to send the form data?
A). method
B). action
C). type
D). name
Which PHP superglobal array is used to retrieve form data sent with the POST method?
A). $_POST
B). $_GET
C). $_REQUEST
D). $_SERVER
Which PHP superglobal array is used to retrieve form data sent with the POST method?
A). $_POST
B). $_GET
C). $_REQUEST
D). $_SERVER
Which PHP function is used to redirect the user to another page?
A). redirect()
B). header()
C). forward()
D). location()
Which attribute of the HTML <form> element specifies the HTTP method to be used when submitting the form data?
A). method
B). action
C). type
D). enctype
What function is used to validate email addresses in PHP?
A). validate_email()
B). filter_var()
C). check_email()
D). email_validate()
How can you access the value of a form field named 'username' submitted via the POST method in PHP?
A). $_GET['username']
B). $_POST['username']
C). $_REQUEST['username']
D). $_SERVER['username']
What function is used to check if a file upload operation was successful in PHP?
A). file_exists()
B). is_uploaded_file()
C). move_uploaded_file()
D). file_upload_successful()
Which PHP function is used to sanitize user input to prevent SQL injection attacks?
A). strip_tags()
B). htmlspecialchars()
C). mysql_real_escape_string()
D). trim()