How can you retrieve data sent through a form using the POST method in PHP?
- A) $_GET['form_field'];
- B) $_POST['form_field'];
- C) request['form_field'];
- D) form['form_field'];
Which of the following is used to start a session in PHP?
- A) session_start();
- B) start_session();
- C) begin_session();
- D) initiate_session();
Which of the following is NOT a valid way to define a constant in PHP?
- A) define('CONSTANT_NAME', 'value');
- B) const CONSTANT_NAME = 'value';
- C) constant('CONSTANT_NAME', 'value');
- D) define('CONSTANT_NAME', 'value', true);
Show Answer
Correct Answer: C - constant('CONSTANT_NAME', 'value');
What is the use of the 'isset()' function in PHP?
- A) To check if a variable is set and is not NULL
- B) To check if a variable is empty
- C) To delete a variable
- D) To initialize a variable
Show Answer
Correct Answer: A - To check if a variable is set and is not NULL
Which of the following is a valid way to comment in PHP?
- A) // This is a comment
- B) /* This is a comment */
- C) # This is a comment
- D) All of the above
How can you retrieve data sent via a POST request in PHP?
- A) $_GET['data'];
- B) $_REQUEST['data'];
- C) $_POST['data'];
- D) $_DATA['data'];
How do you start a session in PHP?
- A) session_start();
- B) start_session();
- C) begin_session();
- D) initiate_session();
Which of the following is used to create a comment in PHP?
- A) // This is a comment
- B) /* This is a comment */
- C) # This is a comment
- D) All of the above
What is the purpose of the 'use' keyword in PHP?
- A) To include files
- B) To import namespaces
- C) To define constants
- D) To declare variables
Which function is used to start a session in PHP?
- A) session_start();
- B) start_session();
- C) begin_session();
- D) session_begin();
What does the 'echo' statement do in PHP?
- A) Outputs a string
- B) Returns a value
- C) Declares a variable
- D) None of the above
Which of the following is a valid way to define a constant in PHP?
- A) define('CONSTANT_NAME', 'value');
- B) const CONSTANT_NAME = 'value';
- C) Both A and B
- D) constant('CONSTANT_NAME', 'value');
Which of the following functions is used to include a file in PHP?
- A) include_file()
- B) require()
- C) import()
- D) include()
What will the following code output? echo (5 + 3) * 2;
What is the correct way to include a file in PHP?
- A) include 'file.php';
- B) require 'file.php';
- C) import 'file.php';
- D) Both A and B
Which of the following is used to comment a single line in PHP?
- A) // This is a comment
- B) /* This is a comment */
- C) # This is a comment
- D) All of the above
Which function is used to connect to a MySQL database in PHP?
- A) mysql_connect()
- B) mysqli_connect()
- C) connect_mysql()
- D) Both A and B
Which of the following is used to define a constant in PHP?
- A) define()
- B) const()
- C) constant()
- D) set_constant()
Which of the following is used to access elements in an associative array in PHP?
- A) $array['key'];
- B) $array.key;
- C) $array(key);
- D) $array->key;
Which function is used to send a raw HTTP header in PHP?
- A) header()
- B) http_header()
- C) send_header()
- D) raw_header()
What is the purpose of the 'require' statement in PHP?
- A) To include a file only if it exists
- B) To include a file and throw an error if it doesn't exist
- C) To include a file conditionally
- D) To define a function
Show Answer
Correct Answer: B - To include a file and throw an error if it doesn't exist
What is the purpose of the 'include' statement in PHP?
- A) To include a file and execute its code.
- B) To include a file without executing its code.
- C) To include a file only if it exists.
- D) To include a file and stop the script.
Show Answer
Correct Answer: A - To include a file and execute its code.
What is the difference between '==' and '===' in PHP?
- A) '==' checks value, '===' checks value and type.
- B) '==' checks type, '===' checks value.
- C) There is no difference.
- D) '==' is for strings, '===' is for numbers.
Show Answer
Correct Answer: A - '==' checks value, '===' checks value and type.
What is the purpose of the 'isset()' function in PHP?
- A) To check if a variable is empty
- B) To check if a variable is set and is not NULL
- C) To initialize a variable
- D) To destroy a variable
Show Answer
Correct Answer: B - To check if a variable is set and is not NULL
How do you define a function in PHP?
- A) function myFunction() {}
- B) def myFunction() {}
- C) create myFunction() {}
- D) function: myFunction() {}
Show Answer
Correct Answer: A - function myFunction() {}
Which of the following is NOT a valid PHP data type?
- A) String
- B) Integer
- C) Float
- D) Character
Which function is used to include the content of one PHP file into another?
- A) include_file()
- B) require()
- C) include()
- D) import()
What is the purpose of the htmlspecialchars() function in PHP?
- A) To escape special characters in a string
- B) To convert a string to HTML
- C) To format HTML code
- D) To validate HTML
Show Answer
Correct Answer: A - To escape special characters in a string
Which function is used to get the length of a string in PHP?
- A) strlen();
- B) str_length();
- C) length();
- D) count();
Which of the following is the correct way to comment in PHP?
- A) // This is a comment
- B) /* This is a comment */
- C) # This is a comment
- D) All of the above
Which of the following is the correct way to connect to a MySQL database using PHP?
- A) mysqli_connect('host', 'user', 'password', 'database');
- B) mysql_connect('host', 'user', 'password', 'database');
- C) connect_mysql('host', 'user', 'password', 'database');
- D) Both A and B
Show Answer
Correct Answer: A - mysqli_connect('host', 'user', 'password', 'database');
Which of the following functions is used to get the length of a string in PHP?
- A) strlen();
- B) string_length();
- C) length();
- D) str_length();
Which superglobal array is used to collect form data after submitting an HTML form?
- A) $_GET
- B) $_POST
- C) $_REQUEST
- D) All of the above
How can you retrieve data from a form using the POST method in PHP?
- A) $_GET['form_field'];
- B) $_POST['form_field'];
- C) $form_field;
- D) request['form_field'];
How can you create an array in PHP?
- A) array()
- B) []
- C) new Array()
- D) All of the above
Which of the following is a valid way to create an array in PHP?
- A) $array = array(1, 2, 3);
- B) $array = [1, 2, 3];
- C) Both A and B
- D) $array = (1, 2, 3);
Which of the following is used to create an array in PHP?
- A) array()
- B) new Array()
- C) []
- D) Both A and C
What is the output of the following PHP code: echo 5 + '10 apples';?
- A) 15
- B) 510 apples
- C) 5
- D) 10 apples
How can you create a constant in PHP?
- A) const NAME = 'value';
- B) define('NAME', 'value');
- C) constant NAME = 'value';
- D) create_constant('NAME', 'value');
Show Answer
Correct Answer: B - define('NAME', 'value');
How can you get the length of an array in PHP?
- A) count(array_name);
- B) length(array_name);
- C) sizeof(array_name);
- D) Both A and C
What is the output of the following PHP code: echo 10 + '20';?
- A) 30
- B) 1020
- C) 10
- D) Error
Which of the following is used to include a file in PHP?
- A) include_file('filename.php');
- B) include('filename.php');
- C) require_file('filename.php');
- D) require('filename.php');
Show Answer
Correct Answer: B - include('filename.php');