MCQ Exam

30:00

What is PHP?

A. Personal Home Page B. Hypertext Preprocessor C. Private Home Page D. Hypertext Markup Language

What is the latest stable version of PHP?

A. PHP 5 B. PHP 6 C. PHP 7 D. PHP 8

What is the correct way to end a PHP statement?

A. . B. , C. ! D. ;

Which symbol is used to comment out a single line in PHP?

A. // B. /* C. -- D. ##

What is the purpose of the PHP function "echo"?

A. To display output to the browser B. To define a constant C. To create a loop D. To declare a variable

Which PHP data type is used to store whole numbers?

A. float B. string C. integer D. boolean

How do you declare a variable in PHP?

A. $variable B. @variable C. #variable D. variable

What is the scope of a local variable in PHP?

A. Global B. Class C. Local D. Static

What is the scope of a global variable in PHP?

A. Global B. Class C. Local D. Static

What is the difference between single quotes (') and double quotes ("") in PHP string literals?

A. Single quotes allow variable interpolation, double quotes do not B. Double quotes allow variable interpolation, single quotes do not C. There is no difference D. Single quotes are for single-line strings, double quotes are for multi-line strings

How do you concatenate two strings in PHP?

A. . B. + C. - D. &

What is the difference between == and === in PHP?

A. == is used for assignment, === is used for comparison B. == performs type coercion, === does not perform type coercion C. == compares values, === compares references D. == and === are the same

What is the ternary operator in PHP, and how is it used?

A. ? operator used for conditionals, e.g., $x = ($y == 1) ? "true" : "false"; B. : operator used for conditionals, e.g., $x = ($y == 1) ? "true" : "false"; C. -> operator used for accessing object properties D. :: operator used for static methods

How do you define a constant in PHP?

A. define("MY_CONSTANT", 42); B. $MY_CONSTANT = 42; C. constant MY_CONSTANT = 42; D. MY_CONSTANT = 42;

What is the purpose of the include statement in PHP?

A. To include and evaluate an external file B. To define a constant C. To create a loop D. To declare a variable

What is the purpose of the require statement in PHP?

A. To include and evaluate an external file B. To define a constant C. To create a loop D. To declare a variable

What is the difference between include and require in PHP?

A. "Include" includes a file, but "require" throws a fatal error if the file is not found. B. "Include" throws a fatal error if the file is not found, but "require" includes a file. C. "Include" and "require" are identical in PHP. D. "Include" and "require" are used for different purposes and cannot be compared.

What is the difference between include_once and include in PHP?

A. include_once includes a file only once, even if it is included multiple times B. include_once includes a file every time it is called C. include_once is used for HTML files, while include is used for PHP files D. include_once is used for including external libraries, while include is used for including application-specific files

What is the difference between require_once and require in PHP?

A. require_once includes a file only once, even if it is required multiple times B. require_once includes a file every time it is required C. require_once is used for HTML files, while require is used for PHP files D. require_once is used for including external libraries, while require is used for including application-specific files

How do you create a function in PHP?

A. function myFunction() {} B. create_function("myFunction", ...) C. method myFunction() {} D. def myFunction():

What is a parameter in a PHP function?

A. A variable that is passed to the function B. A variable declared inside the function C. A variable that is declared globally D. A constant defined within the function

How do you call a function in PHP?

A. Using the "call" keyword B. By typing the function name C. By using the function name followed by parentheses D. Using the "execute" keyword

What is a return statement in PHP, and why is it used?

A. A statement that exits the script B. A statement that defines a variable C. A statement that prints output D. A statement that returns a value from a function

Explain the concept of variable variable names in PHP.

A. Variable names that change dynamically B. Variables that are constants C. Variables with special names D. Variables that store other variables as their names

What is an associative array in PHP?

A. An array with consecutive numeric keys B. An array with string keys C. An array with random keys D. An array with no keys

How do you add an element to an associative array in PHP?

A. $array["key"] = "value"; B. $array->add("key", "value"); C. $array->push("key", "value"); D. array_push($array, "value", "key");

How do you access an element in an associative array in PHP?

A. $value = $array["key"]; B. $value = $array->get("key"); C. $value = $array->value("key"); D. $value = $array->element("key");

What is the foreach loop used for in PHP?

A. To create a while loop B. To iterate through the values of an array C. To iterate through a fixed range of values D. To create a for loop

How do you check if a variable is set in PHP?

A. Using the isset() function B. Using the set() function C. Using the check() function D. Using the empty() function

What is the purpose of the unset function in PHP?

A. To destroy a session B. To remove a variable C. To close a file D. To stop script execution

How do you check if a file exists in PHP?

A. Using the file_exists() function B. Using the is_file() function C. Using the exists() function D. Using the check_file() function

How do you open and close a file in PHP?

A. Using fopen() and fclose() B. Using open() and close() C. Using open_file() and close_file() D. Using read_file() and write_file()

What is the difference between fopen and file_get_contents for reading files in PHP?

A. fopen is used for reading binary files, while file_get_contents is used for reading text files B. fopen opens a file for writing, while file_get_contents opens a file for reading C. fopen returns a resource, while file_get_contents returns a string D. fopen can only read local files, while file_get_contents can read remote files

How do you write data to a file in PHP?

A. Using fwrite() B. Using file_write() C. Using write_file() D. Using put_contents()

What is the purpose of the array_push() function in PHP?

A. To add one or more elements to the end of an array B. To remove elements from an array C. To split an array into multiple arrays D. To check if an array is empty

What is the purpose of the array_pop() function in PHP?

A. To remove and return the last element of an array B. To add elements to an array C. To split an array into multiple arrays D. To check if an array is empty

What is the use of the array_unshift() function in PHP?

A. To add one or more elements to the beginning of an array B. To remove elements from an array C. To split an array into multiple arrays D. To check if an array is empty

What is the purpose of the array_shift() function in PHP?

A. To remove and return the first element of an array B. To add elements to an array C. To split an array into multiple arrays D. To check if an array is empty

What is the use of the array_flip() function in PHP?

A. To exchange keys and values in an array B. To remove elements from an array C. To split an array into multiple arrays D. To check if an array is empty

What is the purpose of the array_keys() function in PHP?

A. To return all the keys of an array as a new indexed array B. To return all the values of an array as a new indexed array C. To split an array into multiple arrays D. To check if an array is empty

What is the use of the array_values() function in PHP?

A. To return all the values of an array as a new indexed array B. To return all the keys of an array as a new indexed array C. To split an array into multiple arrays D. To check if an array is empty

What is the purpose of the array_key_exists() function in PHP?

A. To check if a specific key exists in an array B. To check if an array is empty C. To split an array into multiple arrays D. To remove a specific key from an array

What is the use of the array_combine() function in PHP?

A. To combine two arrays into one using one as keys and the other as values B. To combine two arrays into one using addition C. To split an array into multiple arrays D. To check if an array is empty

What is the purpose of the array_intersect() function in PHP?

A. To return the intersection of two or more arrays B. To merge two arrays C. To split an array into multiple arrays D. To check if an array is empty

What is the use of the array_diff() function in PHP?

A. To return the difference of two or more arrays B. To merge two arrays C. To split an array into multiple arrays D. To check if an array is empty

What is the purpose of the array_merge() function in PHP?

A. To merge two or more arrays into a single array B. To split an array into multiple arrays C. To add elements to an array D. To check if an array is empty

What is the use of the array_push() function in PHP?

A. To add one or more elements to the end of an array B. To remove elements from an array C. To split an array into multiple arrays D. To check if an array is empty

Write a PHP program to display "Hello, World!"

A. <?php echo "Hello, World!"; ?> B. <?php print "Hello, World!"; ?> C. <?php "Hello, World!"; ?> D. <?php printf("Hello, World!"); ?>

Write a PHP program to declare a variable named "num" and assign it the value 42

A. <?php num = 42; ?> B. <?php $num = 42; ?> C. <?php var num = 42; ?> D. <?php int num = 42; ?>

Write a PHP program to add two numbers, 5 and 3, and display the result

A. <?php echo 5 + 3; ?> B. <?php print 5 + 3; ?> C. <?php result = 5 + 3; echo result; ?> D. <?php printf("5 + 3 = %d", 5 + 3); ?>

Write a PHP program to check if a number is even or odd

A. <?php $num = 7; if ($num % 2 == 0) { echo "Even"; } else { echo "Odd"; } ?> B. <?php $num = 7; if ($num % 2 == 1) { echo "Even"; } else { echo "Odd"; } ?> C. <?php $num = 7; if ($num / 2 == 0) { echo "Even"; } else { echo "Odd"; } ?> D. <?php $num = 7; if ($num / 2 == 1) { echo "Even"; } else { echo "Odd"; } ?>

Write a PHP program to find the factorial of a number

A. <?php $num = 5; $fact = 1; for ($i = 1; $i <= $num; $i++) { $fact *= $i; } echo $fact; ?> B. <?php $num = 5; $fact = 0; for ($i = 1; $i <= $num; $i++) { $fact += $i; } echo $fact; ?> C. <?php $num = 5; $fact = 1; for ($i = 2; $i <= $num; $i++) { $fact *= $i; } echo $fact; ?> D. <?php $num = 5; $fact = 0; for ($i = 2; $i <= $num; $i++) { $fact += $i; } echo $fact; ?>

Write a PHP program to check if a string is a palindrome

A. <?php $str = "racecar"; if ($str == strrev($str)) { echo "Palindrome"; } else { echo "Not Palindrome"; } ?> B. <?php $str = "racecar"; if ($str == reverse($str)) { echo "Palindrome"; } else { echo "Not Palindrome"; } ?> C. <?php $str = "racecar"; if ($str == str_reverse($str)) { echo "Palindrome"; } else { echo "Not Palindrome"; } ?> D. <?php $str = "racecar"; if ($str == reverse_str($str)) { echo "Palindrome"; } else { echo "Not Palindrome"; } ?>

Write a PHP program to find the sum of all even numbers from 1 to 100

A. <?php $sum = 0; for ($i = 2; $i <= 100; $i += 2) { $sum += $i; } echo $sum; ?> B. <?php $sum = 0; for ($i = 1; $i <= 100; $i++) { if ($i % 2 == 0) { $sum += $i; } } echo $sum; ?> C. <?php $sum = 0; for ($i = 1; $i <= 100; $i += 2) { $sum += $i; } echo $sum; ?> D. <?php $sum = 0; for ($i = 2; $i <= 100; $i++) { if ($i % 2 == 0) { $sum += $i; } } echo $sum; ?>

Write a PHP program to find the largest number among three numbers

A. <?php $a = 5; $b = 10; $c = 7; if ($a > $b && $a > $c) { echo $a; } elseif ($b > $a && $b > $c) { echo $b; } else { echo $c; } ?> B. <?php $a = 5; $b = 10; $c = 7; if ($a > $b) { if ($a > $c) { echo $a; } else { echo $c; } } else { if ($b > $c) { echo $b; } else { echo $c; } } ?> C. <?php $a = 5; $b = 10; $c = 7; if ($a > $b || $a > $c) { echo $a; } elseif ($b > $a || $b > $c) { echo $b; } else { echo $c; } ?> D. <?php $a = 5; $b = 10; $c = 7; if ($a > $b) { if ($a > $c) { echo $a; } else { echo $c; } } else { if ($b > $a) { echo $b; } else { echo $c; } ?>

Write a PHP program to print the first 10 natural numbers

A. <?php for ($i = 1; $i <= 10; $i++) { echo $i . " "; } ?> B. <?php for ($i = 0; $i < 10; $i++) { echo ($i+1) . " "; } ?> C. <?php for ($i = 0; $i < 10; $i++) { echo $i . " "; } ?> D. <?php for ($i = 1; $i <= 10; $i++) { echo ($i+1) . " "; } ?>

Write a PHP program to reverse a given string

A. <?php $str = "hello"; $reverse = strrev($str); echo $reverse; ?> B. <?php $str = "hello"; $reverse = reverse_string($str); echo $reverse; ?> C. <?php $str = "hello"; $reverse = str_reverse($str); echo $reverse; ?> D. <?php $str = "hello"; $reverse = reverse_str($str); echo $reverse; ?>

Write a PHP program to count the number of words in a given sentence

A. <?php $sentence = "This is a sample sentence."; $words = explode(" ", $sentence); $count = count($words); echo $count; ?> B. <?php $sentence = "This is a sample sentence."; $count = str_word_count($sentence); echo $count; ?> C. <?php $sentence = "This is a sample sentence."; $words = split(" ", $sentence); $count = count($words); echo $count; ?> D. <?php $sentence = "This is a sample sentence."; $count = count_words($sentence); echo $count; ?>

Write a PHP program to find the length of a given string

A. <?php $str = "Hello, World!"; $length = strlen($str); echo $length; ?> B. <?php $str = "Hello, World!"; $length = str_length($str); echo $length; ?> C. <?php $str = "Hello, World!"; $length = length_str($str); echo $length; ?> D. <?php $str = "Hello, World!"; $length = strlen($str); echo $length; ?>

Write a PHP program to find the square root of a given number

A. <?php $num = 25; $sqrt = sqrt($num); echo $sqrt; ?> B. <?php $num = 25; $sqrt = square_root($num); echo $sqrt; ?> C. <?php $num = 25; $sqrt = sqr_root($num); echo $sqrt; ?> D. <?php $num = 25; $sqrt = sqrt($num); echo $sqrt; ?>

Write a PHP program to generate a random number between 1 and 100

A. <?php $rand = rand(1, 100); echo $rand; ?> B. <?php $rand = random(1, 100); echo $rand; ?> C. <?php $rand = generate_random(1, 100); echo $rand; ?> D. <?php $rand = random_num(1, 100); echo $rand; ?>

Write a PHP program to find the sum of digits of a given number

A. <?php $num = 12345; $sum = 0; while ($num != 0) { $sum += $num % 10; $num = (int)($num / 10); } echo $sum; ?> B. <?php $num = 12345; $sum = sum_digits($num); echo $sum; ?> C. <?php $num = 12345; $sum = 0; while ($num != 0) { $sum += $num % 10; $num = (int)($num / 10); } echo $sum; ?> D. <?php $num = 12345; $sum = 0; for ($i = 0; $i < strlen($num); $i++) { $sum += $num[$i]; } echo $sum; ?>

Write a PHP program to find the largest element in an array

A. <?php $arr = [5, 10, 7, 2, 8]; $max = $arr[0]; foreach ($arr as $num) { if ($num > $max) { $max = $num; } } echo $max; ?> B. <?php $arr = [5, 10, 7, 2, 8]; $max = 0; foreach ($arr as $num) { if ($num > $max) { $max = $num; } } echo $max; ?> C. <?php $arr = [5, 10, 7, 2, 8]; $max = $arr[0]; foreach ($arr as $num) { if ($num > $max) { $max = $num; } } echo $max; ?> D. <?php $arr = [5, 10, 7, 2, 8]; $max = $arr[0]; for ($i = 1; $i < count($arr); $i++) { if ($arr[$i] > $max) { $max = $arr[$i]; } } echo $max; ?>

Write a PHP program to check if a number is prime

A. <?php $num = 7; $is_prime = true; for ($i = 2; $i <= sqrt($num); $i++) { if ($num % $i == 0) { $is_prime = false; break; } } if ($is_prime) { echo "Prime"; } else { echo "Not Prime"; } ?> B. <?php $num = 7; $is_prime = false; for ($i = 2; $i <= sqrt($num); $i++) { if ($num % $i == 0) { $is_prime = true; break; } } if ($is_prime) { echo "Prime"; } else { echo "Not Prime"; } ?> C. <?php $num = 7; $is_prime = true; for ($i = 2; $i <= $num / 2; $i++) { if ($num % $i == 0) { $is_prime = false; break; } } if ($is_prime) { echo "Prime"; } else { echo "Not Prime"; } ?> D. <?php $num = 7; $is_prime = false; for ($i = 2; $i <= $num / 2; $i++) { if ($num % $i == 0) { $is_prime = true; break; } } if ($is_prime) { echo "Prime"; } else { echo "Not Prime"; } ?>

Write a PHP program to find the Fibonacci series up to a given number

A. <?php $n = 10; $fib = [0, 1]; for ($i = 2; $i < $n; $i++) { $fib[$i] = $fib[$i - 1] + $fib[$i - 2]; } for ($i = 0; $i < $n; $i++) { echo $fib[$i] . " "; } ?> B. <?php $n = 10; $fib = [1, 1]; for ($i = 2; $i < $n; $i++) { $fib[$i] = $fib[$i - 1] + $fib[$i - 2]; } for ($i = 0; $i < $n; $i++) { echo $fib[$i] . " "; } ?> C. <?php $n = 10; $fib = [0, 1]; for ($i = 2; $i < $n; $i++) { $fib[$i] = $fib[$i - 1] + $fib[$i - 2]; } for ($i = 1; $i < $n; $i++) { echo $fib[$i] . " "; } ?> D. <?php $n = 10; $fib = [1, 1]; for ($i = 2; $i < $n; $i++) { $fib[$i] = $fib[$i - 1] + $fib[$i - 2]; } for ($i = 1; $i < $n; $i++) { echo $fib[$i] . " "; } ?>

Write a PHP program to find the LCM of two numbers

A. <?php $num1 = 12; $num2 = 18; $lcm = ($num1 * $num2) / gcd($num1, $num2); echo $lcm; ?> B. <?php $num1 = 12; $num2 = 18; $lcm = ($num1 * $num2) / lcm($num1, $num2); echo $lcm; ?> C. <?php $num1 = 12; $num2 = 18; $lcm = ($num1 * $num2) / common_multiple($num1, $num2); echo $lcm; ?> D. <?php $num1 = 12; $num2 = 18; $lcm = ($num1 * $num2) / gcd($num1, $num2); echo $lcm; ?>

Write a PHP program to reverse an array

A. <?php $arr = [1, 2, 3, 4, 5]; $reversed = array_reverse($arr); print_r($reversed); ?> B. <?php $arr = [1, 2, 3, 4, 5]; $reversed = reverse_array($arr); print_r($reversed); ?> C. <?php $arr = [1, 2, 3, 4, 5]; $reversed = array_reverse($arr); echo implode(" ", $reversed); ?> D. <?php $arr = [1, 2, 3, 4, 5]; $reversed = array_reverse($arr); echo implode(",", $reversed); ?>

Write a PHP program to find the number of vowels in a given string

A. <?php $str = "hello world"; $vowels = 0; $str = strtolower($str); for ($i = 0; $i < strlen($str); $i++) { if ($str[$i] == "a" || $str[$i] == "e" || $str[$i] == "i" || $str[$i] == "o" || $str[$i] == "u") { $vowels++; } } echo $vowels; ?> B. <?php $str = "hello world"; $vowels = 0; $str = strtolower($str); for ($i = 0; $i < strlen($str); $i++) { if ($str[$i] == "a" || $str[$i] == "e" || $str[$i] == "i" || $str[$i] == "o" || $str[$i] == "u") { $vowels++; } } echo $vowels; ?> C. <?php $str = "hello world"; $vowels = 0; $str = strtolower($str); for ($i = 0; $i < strlen($str); $i++) { if ($str[$i] == "a" || $str[$i] == "e" || $str[$i] == "i" || $str[$i] == "o" || $str[$i] == "u") { $vowels++; } } echo $vowels; ?> D. <?php $str = "hello world"; $vowels = 0; $str = strtolower($str); for ($i = 0; $i < strlen($str); $i++) { if ($str[$i] == "a" || $str[$i] == "e" || $str[$i] == "i" || $str[$i] == "o" || $str[$i] == "u") { $vowels++; } } echo $vowels; ?>

Write a PHP program to check if a string is a valid email address

A. <?php $email = "user@example.com"; if (filter_var($email, FILTER_VALIDATE_EMAIL)) { echo "Valid Email"; } else { echo "Invalid Email"; } ?> B. <?php $email = "user@example.com"; if (validate_email($email)) { echo "Valid Email"; } else { echo "Invalid Email"; } ?> C. <?php $email = "user@example.com"; if (is_valid_email($email)) { echo "Valid Email"; } else { echo "Invalid Email"; } ?> D. <?php $email = "user@example.com"; if (filter_var($email, FILTER_VALIDATE_EMAIL)) { echo "Valid Email"; } else { echo "Invalid Email"; } ?>

Write a PHP program to find the factorial of a given number using recursion

A. <?php function factorial($num) { if ($num <= 1) { return 1; } else { return $num * factorial($num - 1); } } $num = 5; echo factorial($num); ?> B. <?php function factorial($num) { if ($num <= 1) { return 1; } else { return $num * factorial($num - 1); } } $num = 5; echo factorial($num); ?> C. <?php function factorial($num) { if ($num <= 1) { return 1; } else { return $num * factorial($num - 1); } } $num = 5; echo factorial($num); ?> D. <?php function factorial($num) { if ($num <= 1) { return 1; } else { return $num * factorial($num - 1); } } $num = 5; echo factorial($num); ?>

Write a PHP program to find the second largest element in an array

A. <?php $arr = [5, 10, 7, 2, 8]; $first_max = $arr[0]; $second_max = $arr[1]; if ($second_max > $first_max) { $temp = $first_max; $first_max = $second_max; $second_max = $temp; } foreach ($arr as $num) { if ($num > $first_max) { $second_max = $first_max; $first_max = $num; } elseif ($num > $second_max && $num != $first_max) { $second_max = $num; } } echo $second_max; ?> B. <?php $arr = [5, 10, 7, 2, 8]; $first_max = $arr[0]; $second_max = $arr[1]; if ($second_max > $first_max) { $temp = $first_max; $first_max = $second_max; $second_max = $temp; } foreach ($arr as $num) { if ($num > $first_max) { $second_max = $first_max; $first_max = $num; } elseif ($num > $second_max && $num != $first_max) { $second_max = $num; } } echo $second_max; ?> C. <?php $arr = [5, 10, 7, 2, 8]; $first_max = $arr[0]; $second_max = $arr[1]; if ($second_max > $first_max) { $temp = $first_max; $first_max = $second_max; $second_max = $temp; } foreach ($arr as $num) { if ($num > $first_max) { $second_max = $first_max; $first_max = $num; } elseif ($num > $second_max && $num != $first_max) { $second_max = $num; } } echo $second_max; ?> D. <?php $arr = [5, 10, 7, 2, 8]; $first_max = $arr[0]; $second_max = $arr[1]; if ($second_max > $first_max) { $temp = $first_max; $first_max = $second_max; $second_max = $temp; } foreach ($arr as $num) { if ($num > $first_max) { $second_max = $first_max; $first_max = $num; } elseif ($num > $second_max && $num != $first_max) { $second_max = $num; } } echo $second_max; ?>

Write a PHP program to remove duplicates from an array

A. <?php $arr = [1, 2, 2, 3, 4, 4, 5]; $unique_arr = array_unique($arr); print_r($unique_arr); ?> B. <?php $arr = [1, 2, 2, 3, 4, 4, 5]; $unique_arr = remove_duplicates($arr); print_r($unique_arr); ?> C. <?php $arr = [1, 2, 2, 3, 4, 4, 5]; $unique_arr = array_unique($arr); echo implode(" ", $unique_arr); ?> D. <?php $arr = [1, 2, 2, 3, 4, 4, 5]; $unique_arr = array_unique($arr); echo implode(",", $unique_arr); ?>

Write a PHP program to sort an array in ascending order

A. <?php $arr = [5, 2, 8, 1, 7]; sort($arr); print_r($arr); ?> B. <?php $arr = [5, 2, 8, 1, 7]; $sorted_arr = array_sort($arr); print_r($sorted_arr); ?> C. <?php $arr = [5, 2, 8, 1, 7]; sort($arr); echo implode(" ", $arr); ?> D. <?php $arr = [5, 2, 8, 1, 7]; sort($arr); echo implode(",", $arr); ?>

Write a PHP program to find the sum of all prime numbers between 1 and 100

A. <?php $sum = 0; for ($num = 2; $num <= 100; $num++) { $is_prime = true; for ($i = 2; $i <= sqrt($num); $i++) { if ($num % $i == 0) { $is_prime = false; break; } } if ($is_prime) { $sum += $num; } } echo $sum; ?> B. <?php $sum = 0; for ($num = 2; $num <= 100; $num++) { $is_prime = true; for ($i = 2; $i <= sqrt($num); $i++) { if ($num % $i == 0) { $is_prime = false; break; } } if ($is_prime) { $sum += $num; } } echo $sum; ?> C. <?php $sum = 0; for ($num = 2; $num <= 100; $num++) { $is_prime = true; for ($i = 2; $i <= sqrt($num); $i++) { if ($num % $i == 0) { $is_prime = false; break; } } if ($is_prime) { $sum += $num; } } echo $sum; ?> D. <?php $sum = 0; for ($num = 2; $num <= 100; $num++) { $is_prime = true; for ($i = 2; $i <= sqrt($num); $i++) { if ($num % $i == 0) { $is_prime = false; break; } } if ($is_prime) { $sum += $num; } } echo $sum; ?>

Write a PHP program to check if a year is a leap year

A. <?php $year = 2024; if (($year % 4 == 0 && $year % 100 != 0) || $year % 400 == 0) { echo "Leap Year"; } else { echo "Not a Leap Year"; } ?> B. <?php $year = 2024; if (is_leap_year($year)) { echo "Leap Year"; } else { echo "Not a Leap Year"; } ?> C. <?php $year = 2024; if ($year % 4 == 0 && $year % 100 != 0) { echo "Leap Year"; } elseif ($year % 400 == 0) { echo "Leap Year"; } else { echo "Not a Leap Year"; } ?> D. <?php $year = 2024; if (($year % 4 == 0 && $year % 100 != 0) || $year % 400 == 0) { echo "Leap Year"; } else { echo "Not a Leap Year"; } ?>

Write a PHP program to find the power of a number

A. <?php $base = 2; $exponent = 3; $result = pow($base, $exponent); echo $result; ?> B. <?php $base = 2; $exponent = 3; $result = power($base, $exponent); echo $result; ?> C. <?php $base = 2; $exponent = 3; $result = $base ** $exponent; echo $result; ?> D. <?php $base = 2; $exponent = 3; $result = pow($base, $exponent); echo $result; ?>

Write a PHP program to find the GCD of two numbers

A. <?php $num1 = 12; $num2 = 18; $gcd = gcd($num1, $num2); echo $gcd; ?> B. <?php $num1 = 12; $num2 = 18; $gcd = gcd($num1, $num2); echo $gcd; ?> C. <?php $num1 = 12; $num2 = 18; $gcd = find_gcd($num1, $num2); echo $gcd; ?> D. <?php $num1 = 12; $num2 = 18; $gcd = find_gcd($num1, $num2); echo $gcd; ?>

Write a PHP program to find the sum of all odd numbers from 1 to 100

A. <?php $sum = 0; for ($i = 1; $i <= 100; $i += 2) { $sum += $i; } echo $sum; ?> B. <?php $sum = 0; for ($i = 1; $i <= 100; $i += 2) { $sum += $i; } echo $sum; ?> C. <?php $sum = 0; for ($i = 1; $i <= 100; $i += 2) { $sum += $i; } echo $sum; ?> D. <?php $sum = 0; for ($i = 1; $i <= 100; $i += 2) { $sum += $i; } echo $sum; ?>

Write a PHP program to find the average of an array of numbers

A. <?php $arr = [5, 10, 15, 20]; $sum = array_sum($arr); $count = count($arr); $average = $sum / $count; echo $average; ?> B. <?php $arr = [5, 10, 15, 20]; $sum = array_sum($arr); $count = count($arr); $average = $sum / $count; echo $average; ?> C. <?php $arr = [5, 10, 15, 20]; $sum = array_sum($arr); $count = count($arr); $average = $sum / $count; echo $average; ?> D. <?php $arr = [5, 10, 15, 20]; $sum = array_sum($arr); $count = count($arr); $average = $sum / $count; echo $average; ?>

Write a PHP program to find the smallest element in an array

A. <?php $arr = [5, 10, 7, 2, 8]; $min = $arr[0]; foreach ($arr as $num) { if ($num < $min) { $min = $num; } } echo $min; ?> B. <?php $arr = [5, 10, 7, 2, 8]; $min = $arr[0]; foreach ($arr as $num) { if ($num < $min) { $min = $num; } } echo $min; ?> C. <?php $arr = [5, 10, 7, 2, 8]; $min = $arr[0]; foreach ($arr as $num) { if ($num < $min) { $min = $num; } } echo $min; ?> D. <?php $arr = [5, 10, 7, 2, 8]; $min = $arr[0]; foreach ($arr as $num) { if ($num < $min) { $min = $num; } } echo $min; ?>

What does HTML stand for?

A. Hyper Transfer Markup Language B. Hyper Text Makeup Language C. Hyper Text Markup Language D. High Text Markup Language

Which HTML tag is used to create a hyperlink?

A. <a> B. <link> C. <href> D. <u>

What is the correct HTML element for the largest heading?

A. <h1> B. <head> C. <h6> D. <heading>

Which HTML tag is used to define an unordered list?

A. <ul> B. <ol> C. <li> D. <dl>

Which HTML tag is used to define a table row?

A. <tr> B. <table> C. <td> D. <th>

What is the correct HTML for creating a hyperlink?

A. <a href="http://www.example.com">Click here</a> B. <a>http://www.example.com</a> C. <link href="http://www.example.com">Click here</link> D. <a src="http://www.example.com">Click here</a>

Which HTML tag is used to define a paragraph?

A. <p> B. <para> C. <pg> D. <par>

Which HTML attribute is used to specify that an input field must be filled out?

A. required B. validate C. mandatory D. inputrequired

What is the correct HTML for adding a background color?

A. <body style="background-color: yellow;"> B. <background>yellow</background> C. <bg-color>yellow</bg-color> D. <bg yellow>

Which HTML element is used to display a scalar measurement within a range?

A. <meter> B. <gauge> C. <value> D. <scale>

Which HTML element defines navigation links?

A. <nav> B. <navigation> C. <navbar> D. <navlink>

What is the correct HTML for inserting an image?

A. <img src="image.jpg" alt="MyImage"> B. <image href="image.jpg" alt="MyImage"> C. <img alt="MyImage">image.jpg</img> D. <img alt="MyImage" src="image.jpg">

What is the correct HTML for creating a hyperlink to another website?

A. <a href="http://www.example.com">Visit our website</a> B. <a>http://www.example.com</a> C. <a>www.example.com</a> D. <a link="http://www.example.com">Visit our website</a>

What is the purpose of the HTML

A. To draw graphics on the web page B. To create forms C. To display images D. To play audio and video

What is the correct HTML for inserting a line break?

A. <br> B. <lb> C. <break> D. <newline>

Which HTML tag is used to define a list item?

A. <li> B. <ul> C. <ol> D. <dl>

What does CSS stand for?

A. Cascading Style Sheets B. Creative Style Sheets C. Computer Style Sheets D. Colorful Style Sheets

Which CSS property is used to change the text color of an element?

A. color B. text-color C. font-color D. text-style

Which CSS property is used to change the background color of an element?

A. background-color B. color C. bg-color D. background

Which CSS property is used to change the font size of an element?

A. font-size B. text-size C. font-style D. text-font

How do you add comments in CSS?

A. /* This is a comment */ B. // This is a comment // C.  D. # This is a comment #

Which CSS property is used to make text bold?

A. font-weight B. bold C. text-weight D. font-bold

Which CSS property is used to underline text?

A. text-decoration B. underline C. decoration D. text-underline

How do you select an element with id "demo" in CSS?

A. #demo B. .demo C. *demo D. element.demo

How do you select elements with class "example" in CSS?

A. .example B. element.example C. #example D. *example

Which CSS property is used to control the space between lines of text?

A. line-height B. text-spacing C. line-spacing D. text-line-height

Which CSS property is used to control the space between the letters of text?

A. letter-spacing B. text-spacing C. letter-spacing D. line-spacing

Which CSS property is used to control the alignment of text?

A. text-align B. alignment C. text-style D. align-text

What is the purpose of the CSS z-index property?

A. To control the stacking order of elements B. To set the text size C. To control the text color D. To set the background color

Which CSS property is used to add rounded corners to an element?

A. border-radius B. rounded-corners C. corner-radius D. border-round

Which CSS property is used to create a shadow effect on text?

A. text-shadow B. shadow-text C. text-effect D. text-outline

What is the correct CSS syntax for making all the

elements bold?

A. p {font-weight: bold;} B. <p style="font-weight: bold;"> C. p {text-weight: bold;} D. p {style: bold;}

What is the correct CSS syntax for changing the font of an element to Arial?

A. font-family: Arial, sans-serif; B. font: Arial, sans-serif; C. font-name: Arial; D. text-font: Arial;

How do you group multiple selectors in CSS?

A. Separate them with commas B. Group them in curly braces C. Separate them with semicolons D. Group them in square brackets

What is the purpose of the CSS float property?

A. To specify how an element should float B. To control the background color C. To add padding to an element D. To center-align text

Which CSS property is used to control the transparency of an element?

A. opacity B. transparent C. visibility D. transparency

What is the purpose of the CSS display property?

A. To specify how an element should be displayed B. To control the font size C. To add borders to an element D. To change the text color

How do you make a list that lists its items with squares?

A. list-style-type: square; B. list-type: square; C. list-item-type: square; D. list: square;

Which HTML tag is used to define an internal style sheet?

A. <style> B. <css> C. <stylesheet> D. <styling>

What is the correct HTML for referring to an external style sheet?

A. <link rel="stylesheet" type="text/css" href="styles.css"> B. <style src="styles.css"> C. <link href="styles.css" type="text/css" rel="stylesheet"> D. <stylesheet src="styles.css">

Which property is used to change the left margin of an element?

A. margin-left B. left-margin C. margin-left D. element-margin-left

What is the purpose of the CSS position property?

A. To specify the positioning method of an element B. To control the text alignment C. To add padding to an element D. To set the background color

How do you make a background image repeat horizontally in CSS?

A. background-repeat: repeat-x; B. background-repeat: horizontal; C. background-repeat: repeat-h; D. background-repeat-x: true;

What is the correct HTML for creating an email link?

A. <a href="mailto:example@example.com">Email me</a> B. <a link="example@example.com">Email me</a> C. <email>example@example.com</email> D. <a mailto="example@example.com">Email me</a>

What is the correct HTML for creating a button?

A. <button>Click me</button> B. <input type="button" value="Click me"> C. <input type="submit" value="Click me"> D. <btn>Click me</btn>

Which CSS property is used to control the width of an element?

A. width B. element-width C. control-width D. width-control

What is the correct HTML for creating a checkbox?

A. <input type="checkbox"> B. <check>Checkbox</check> C. <input checkbox> D. <checkbox>Check me</checkbox>

How do you make a text input field required in HTML?

A. Add the "required" attribute B. Set the "mandatory" property to true C. Add the "validate" attribute D. Set the "required" property to true

What is the purpose of the HTML

How do you create an ordered list with numbers in HTML?

A. <ol> B. <ul> C. <li> D. <dl>

Which HTML tag is used to define a hyperlink?

A. <a> B. <link> C. <href> D. <u>

How do you create a new paragraph in HTML?

A. <p> B. <br> C. <par> D. <newline>

What is the correct HTML for creating a radio button?

A. <input type="radio"> B. <radio>Radio button</radio> C. <input radio> D. <radiobutton>Radio button</radiobutton>

What is the correct HTML for creating a drop-down list?

A. <select> B. <dropdown> C. <list> D. <options>

What is the correct HTML for creating a text input field?

A. <input type="text"> B. <text>Text field</text> C. <input text> D. <textfield>Text field</textfield>

What is the correct HTML for creating a submit button?

A. <input type="submit" value="Submit"> B. <button type="submit">Submit</button> C. <submit>Submit button</submit> D. <input type="button" value="Submit">

Which HTML tag is used to define a table?

A. <table> B. <tr> C. <td> D. <th>

What is the correct HTML for creating a table header?

A. <th> B. <td> C. <tr> D. <thead>

How do you create a hyperlink in HTML?

A. <a href="http://www.example.com">Visit our website</a> B. <a>http://www.example.com</a> C. <link href="http://www.example.com">Visit our website</link> D. <a src="http://www.example.com">Visit our website</a>

How do you make a text input field read-only in HTML?

A. Add the "readonly" attribute B. Set the "read-only" property to true C. Add the "disable" attribute D. Set the "editable" property to false

What is the correct HTML for creating a numbered list?

A. <ol> B. <ul> C. <li> D. <dl>

Which HTML tag is used to define an external style sheet?

A. <link> B. <style> C. <stylesheet> D. <css>

What is the correct HTML for creating a hyperlink to an email address?

A. <a href="mailto:example@example.com">Email me</a> B. <a link="example@example.com">Email me</a> C. <email>example@example.com</email> D. <a mailto="example@example.com">Email me</a>

How do you create a new list item in HTML?

A. <li> B. <ul> C. <ol> D. <dl>

What is the correct HTML for inserting a background image?

A. <body style="background-image: url(background.jpg);"> B. <background src="background.jpg"> C. <bg-image>background.jpg</bg-image> D. <img src="background.jpg" alt="Background">

What is the purpose of the HTML element?

A. To contain meta-information about the document B. To define the main content of the document C. To specify the heading of the document D. To create a header section

How do you create a comment in HTML?

A.  B. // This is a comment // C. <comment>This is a comment</comment> D. # This is a comment #

What is the correct HTML for creating a hyperlink to another website in a new tab?

A. <a href="http://www.example.com" target="_blank">Visit our website</a> B. <a href="http://www.example.com" target="_new">Visit our website</a> C. <a href="http://www.example.com" target="new">Visit our website</a> D. <a href="http://www.example.com" newtab>Visit our website</a>

What is the correct HTML for creating a horizontal line?

A. <hr> B. <line> C. <horizontal> D. <line-hr>

What is the correct HTML for inserting a copyright symbol?

A. © B. © C. &(c) D. <copyright>

What is the correct HTML for creating a hyperlink to a webpage?

A. <a href="http://www.example.com">Visit our webpage</a> B. <a>http://www.example.com</a> C. <link href="http://www.example.com">Visit our webpage</link> D. <a src="http://www.example.com">Visit our webpage</a>

How do you create an unordered list with square bullets?

A. list-style-type: square; B. list-type: square; C. list-bullet-type: square; D. list: square;

What is the correct HTML for creating a superscript text?

A. <sup>Superscript</sup> B. <super>Superscript</super> C. <sub>Superscript</sub> D. <sups>Superscript</sups>

What is the correct HTML for creating a subscript text?

A. <sub>Subscript</sub> B. <super>Subscript</super> C. <subs>Subscript</subs> D. <sups>Subscript</sups>

What is the purpose of the HTML element?

A. To provide metadata about the document B. To define a new section of the document C. To create a clickable link D. To specify the main content of the document

How do you create a hyperlink that will send an email?

A. <a href="mailto:example@example.com">Send email</a> B. <a>mailto:example@example.com</a> C. <link href="mailto:example@example.com">Send email</link> D. <a src="mailto:example@example.com">Send email</a>

What is the correct HTML for inserting a paragraph?

A. <p>This is a paragraph</p> B. <para>This is a paragraph</para> C. <pg>This is a paragraph</pg> D. <par>This is a paragraph</par>

How do you create a hyperlink to another webpage?

What is the correct HTML for creating a text area?

A. <textarea>Enter text here</textarea> B. <input type="textarea" value="Enter text here"> C. <input type="text" area="Enter text here"> D. <input area="Enter text here">

What is the correct HTML for creating a video?

A. <video src="movie.mp4" controls></video> B. <video>movie.mp4</video> C. <movie src="movie.mp4"></movie> D. <video source="movie.mp4"></video>

What is the correct HTML for creating a line break?

A. <br> B. <line-break> C. <lb> D. <newline>

What is the correct HTML for creating a table?

A. <table> B. <tr> C. <td> D. <th>

How do you create an ordered list in HTML?

A. <ol> B. <ul> C. <li> D. <dl>

How do you make a list that lists its items with numbers in HTML?

A. list-style-type: decimal; B. list-type: numbers; C. list-bullet-type: numbers; D. list: numbers;

What is the correct HTML for creating a copyright symbol?

A. © B. © C. &(c) D. <copyright>

How do you include an external CSS file in an HTML document?

A. <link rel="stylesheet" type="text/css" href="styles.css"> B. <style src="styles.css"> C. <link href="styles.css"> D. <style type="text/css" src="styles.css">

What is the purpose of CSS?

A. To define the presentation and layout of web pages. B. To define the structure of web pages. C. To define the behavior of web pages. D. To define the content of web pages.

How do you select all paragraphs in CSS?

A. p { } B. paragraph { } C. select p { } D. all p { }

What is the CSS property used to change the text color of an element?

A. color B. text-color C. font-color D. text-style

What does the "box model" in CSS refer to?

A. It describes how elements are laid out in terms of content, padding, border, and margin. B. It describes the colors used in a web page. C. It describes the layout of text within a box. D. It describes the hierarchy of HTML elements.

How do you center an element horizontally in CSS?

A. margin: 0 auto; B. text-align: center; C. align: center; D. position: center;

What is the CSS property used to set the background color of an element?

A. background-color B. bg-color C. color-background D. background

How do you make a text italic in CSS?

A. font-style: italic; B. text-style: italic; C. italicize: true; D. style: italic;

What is the CSS property used to control the spacing between lines of text?

A. line-height B. text-spacing C. line-spacing D. spacing

What is the CSS property used to change the font size of an element?

A. font-size B. text-size C. size D. font-style

How do you create a class selector in CSS?

A. .classname { } B. #classname { } C. :classname { } D. classname { }

What is the CSS property used to add shadow to text?

A. text-shadow B. shadow-text C. font-shadow D. text-effect

How do you select an element by its ID in CSS?

A. #idname { } B. .idname { } C. :idname { } D. idname { }

What is the CSS property used to set the text alignment within an element?

A. text-align B. alignment C. align-text D. text-alignment

How do you select all links in CSS?

A. a { } B. links { } C. select a { } D. all a { }

What is the CSS property used to control the style of the bullet in a list?

A. list-style-type B. bullet-style C. list-bullet-type D. style-type

How do you select the first child element in CSS?

A. :first-child B. ::first-child C. first-child D. :first

What is the CSS property used to control the spacing between elements?

A. margin B. padding C. spacing D. border

How do you select all headers (h1 to h6) in CSS?

A. h1, h2, h3, h4, h5, h6 { } B. headers { } C. select h1, h2, h3, h4, h5, h6 { } D. all h1, h2, h3, h4, h5, h6 { }

What is the CSS property used to set the font family of an element?

A. font-family B. font C. family D. text-font

How do you select all elements with a specific class in CSS?

A. .classname { } B. #classname { } C. :classname { } D. classname { }

What is the CSS property used to control the style of a border?

A. border-style B. style C. border D. border-type

How do you select all elements with a specific attribute in CSS?

A. [attribute] { } B. #attribute { } C. :attribute { } D. attribute { }

What is the CSS property used to control the width of an element?

A. width B. element-width C. size D. element-size

How do you select the last child element in CSS?

A. :last-child B. ::last-child C. last-child D. :last

What is the CSS property used to set the opacity of an element?

A. opacity B. transparent C. visibility D. display

How do you select elements that are in a specific state, like when hovered over, in CSS?

A. :hover B. :active C. :state D. :selected

What is the CSS property used to set the maximum width of an element?

A. max-width B. maximum-width C. width-max D. element-max-width

How do you select elements that are visited links in CSS?

A. :visited B. :link C. :active D. :hover

What is the CSS property used to set the height of an element?

A. height B. element-height C. size D. element-size

How do you select the first letter of a paragraph in CSS?

A. ::first-letter B. :first-letter C. first-letter D. ::letter

What is the CSS property used to set the margin on the top of an element?

A. margin-top B. top-margin C. margin D. element-margin-top

How do you select elements that are being clicked in CSS?

A. :active B. :hover C. :clicked D. :focus

What is the CSS property used to set the padding on all sides of an element?

A. padding B. element-padding C. padding-all D. padding-sides

How do you select elements that have focus in CSS?

A. :focus B. :active C. :hover D. :selected

What is the CSS property used to set the text decoration of an element?

A. text-decoration B. decoration C. style D. deco-style

How do you select elements that have a specific attribute with a specific value in CSS?

A. [attribute=value] { } B. [value=attribute] { } C. [attribute:value] { } D. [attribute: value] { }

What is the CSS property used to set the border color of an element?

A. border-color B. color C. border D. element-border-color

How do you select elements that are disabled in CSS?

A. :disabled B. :enabled C. :active D. :checked

What is the CSS property used to set the text transform of an element?

A. text-transform B. transform C. text-style D. style

How do you select elements that are checked (e.g., checkboxes) in CSS?

A. :checked B. :selected C. :active D. :hover

What is the CSS property used to set the font weight of an element?

A. font-weight B. weight C. font-style D. style

How do you select elements that are not hovered over in CSS?

A. :not(:hover) B. :not:hover C. :hovered D. :not

What is the CSS property used to set the border width of an element?

A. border-width B. width C. border D. element-border-width

How do you select the first line of a paragraph in CSS?

A. ::first-line B. :first-line C. first-line D. ::line

What is the CSS property used to set the font style of an element?

A. font-style B. style C. font D. text-style

How do you select elements that are out of focus in CSS?

A. :not(:focus) B. :focus:not C. :focused D. :out-of-focus

What is the CSS property used to set the list item marker style?

A. list-style-type B. marker-style C. list-marker D. item-style

How do you select the last line of a paragraph in CSS?

A. ::last-line B. :last-line C. last-line D. ::line

What is the CSS property used to set the border radius of an element?

A. border-radius B. radius C. border D. element-border-radius

How do you select the nth child element in CSS?

A. :nth-child(n) B. ::nth-child(n) C. nth-child(n) D. :child(n)

What is the CSS property used to set the outline of an element?

A. outline B. element-outline C. border D. border-outline

How do you select the nth-of-type element in CSS?

A. :nth-of-type(n) B. ::nth-of-type(n) C. nth-of-type(n) D. :of-type(n)

What does JavaScript stand for?

A. JavaScript B. JustScript C. JavaSource D. JScript

What is the correct way to declare a JavaScript variable?

A. var x; B. variable x; C. x = var; D. x = variable;

How do you comment out multiple lines of code in JavaScript?

A. /* This is a comment */ B. // This is a comment // C.  D. # This is a comment #

What is the result of the following expression: 5 + "5" in JavaScript?

A. 10 B. 55 C. Error D. 505

What is the correct way to write a JavaScript array?

A. var colors = ["Red", "Green", "Blue"]; B. array colors = ["Red", "Green", "Blue"]; C. colors = "Red, Green, Blue"; D. var colors = "Red, Green, Blue";

How do you add an element to the end of an array in JavaScript?

A. array.push(element); B. array.append(element); C. array.add(element); D. array.insert(element);

Which operator is used for strict equality in JavaScript?

A. === B. = C. == D. !==

What is the result of the following expression: "5" + 2 in JavaScript?

A. 52 B. 7 C. Error D. 52.0

How do you round a number to the nearest integer in JavaScript?

A. Math.round(x); B. round(x); C. x.round(); D. Math.floor(x);

How do you declare a function in JavaScript?

A. function myFunction() { } B. var myFunction() = function { } C. myFunction = function() { } D. def myFunction() { }

What is the correct way to write an if statement in JavaScript?

A. if (x == 5) { } B. if x = 5 then { } C. if x = 5 { } D. if x == 5 then { }

How do you add a comment in JavaScript?

A. // This is a comment B.  C. # This is a comment # D. /* This is a comment */

What is the JavaScript operator for exponentiation?

A. ** B. ^ C. ^^ D. *

How do you create a JavaScript function that takes parameters?

A. function myFunction(param1, param2) { } B. function myFunction = (param1, param2) => { } C. function myFunction(param1 param2) { } D. myFunction(param1, param2) = function { }

What is the correct JavaScript syntax for referring to an external script called "script.js"?

A. <script src="script.js"> B. <script name="script.js"> C. <script href="script.js"> D. <link rel="script" href="script.js">

How do you write a conditional statement for executing some code if "x" is equal to 5 in JavaScript?

A. if (x == 5) { } B. if x = 5 { } C. if x == 5 then { } D. if x = 5 then { }

What is the JavaScript syntax for creating an object?

A. var person = {firstName:"John", lastName:"Doe"}; B. var person = [firstName:"John", lastName:"Doe"]; C. var person = (firstName:"John", lastName:"Doe"); D. var person = "firstName":"John", "lastName":"Doe";

How do you call a function named "myFunction" in JavaScript?

A. myFunction() B. call myFunction() C. call function myFunction D. function myFunction()

What is the result of the following expression: 5 % 2 in JavaScript?

A. 1 B. 2.5 C. Error D. 0.5

How do you create a JavaScript function that returns a value?

A. function myFunction() { return value; } B. function myFunction { return value; } C. myFunction = function() { return value; } D. def myFunction() { return value; }

Which event is triggered when a user clicks on an HTML element?

A. onclick B. onchange C. onmouseover D. onmouseclick

How do you change the text of an HTML element with id="demo" using JavaScript?

A. document.getElementById("demo").innerHTML = "Hello World!"; B. document.getElement("demo").text = "Hello World!"; C. document.getElementByName("demo").text = "Hello World!"; D. document.getElementByTagName("demo").innerHTML = "Hello World!";

What is the JavaScript syntax for writing comments?

A. // This is a comment B.  C. # This is a comment # D. /* This is a comment */

How do you create a for loop in JavaScript?

A. for (var i = 0; i < 5; i++) { } B. for (i = 0; i < 5; i++) { } C. for (i = 0; i < 5) { } D. loop (i = 0; i < 5; i++) { }