Answer & Solution
explode()
function in PHP is used to split a string into an array based on a specified delimiter.
explode()
function in PHP?
explode()
function in PHP is used to split a string into an array based on a specified delimiter.
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()
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
How can you prevent SQL injection attacks in PHP?
A). Use prepared statements with parameterized queries.
B). Escape user input using the
htmlspecialchars()
function.
C). Sanitize user input using the
filter_var()
function.
D). Validate user input using regular expressions.
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 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
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()
Which PHP function is used to redirect the user to another page?
A). redirect()
B). header()
C). forward()
D). location()
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). $_SERVER['username']
How can you check if a checkbox is checked in PHP when submitted via a form?
A). isset($_POST['checkbox'])
B). $_POST['checkbox'] == 'checked'
C). $_POST['checkbox'] === 'checked'
D). empty($_POST['checkbox'])
What is the purpose of the htmlspecialchars()
function in PHP?
A). To convert HTML entities to their corresponding characters.
B). To remove HTML tags from a string.
C). To encode special characters in HTML format.
D). To decode special characters in HTML format.