explode() function in PHP?
explode() function in PHP is used to split a string into an array based on a specified delimiter.
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.
What function is used to validate email addresses in PHP?
A). validate_email()
B). filter_var()
C). check_email()
D). email_validate()
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). $_SERVER
How can you check if a checkbox is checked in PHP when submitted via a form?
A). isset($_POST['checkbox'])
B). $_POST['checkbox'] == 'checked'
C). $_POST['checkbox'] === 'checked'
D). empty($_POST['checkbox'])
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
Which function is used to check if a variable is an array in PHP?
A). is_array()
B). check_array()
C). array_check()
D). isArray()
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()
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