<? ... ?> is deprecated and should be avoided in favor of <?php ... ?> for compatibility and consistency.
Which function is used to retrieve the value of a query string parameter in PHP?
A). $_GET[]
B). $_POST[]
C). $_SESSION[]
D). $_COOKIE[]
What does the following code output? <?php echo 5 + 3 * 2; ?>
A). 16
B). 11
C). 10
D). 6
What is the purpose of the PHP phpinfo() function?
A). To display information about the PHP environment
B). To execute PHP code
C). To retrieve data from a database
D). To create a new PHP file
Which of the following tags is used to indicate the beginning of PHP code?
A). <?php
B). <!DOCTYPE html>
C). <? ... ?>
D). </php>
Which PHP function is used to output content as HTML entities, preventing cross-site scripting (XSS) attacks?
A). htmlspecialchars()
B). htmlentities()
C). escape()
D). sanitize()
Which PHP function is used to check if a file exists in PHP?
A). file_exists()
B). is_file()
C). exists()
D). check_file()
What is the purpose of the semicolon (;) in PHP?
A). To indicate the end of a statement
B). To concatenate strings
C). To multiply two numbers
D). To declare a variable
Which of the following statements is true about PHP variables?
A). Variable names are case-sensitive in PHP
B). PHP variables must start with a dollar sign ($)
C). Variable names cannot contain numbers
D). Variables in PHP cannot be reassigned
Which function is used to include the contents of another PHP file?
A). include()
B). require()
C). import()
D). load()
Which of the following PHP directives is used to set the maximum execution time of a script?
A). max_execution_time
B). memory_limit
C). error_reporting
D). display_errors