PHP Quiz (Set 1) PHP (Set 1) 1 / 10 What is the purpose of the 'strlen()' function in PHP? To find the position of a substring within a string To count the number of characters in a string To extract a portion of a string To convert a string to uppercase 2 / 10 What is the correct way to define a constant in PHP? define constant_name(value) const constant_name = value; define('constant_name', value); constant constant_name = value; 3 / 10 Which PHP function is used to output data to the browser? print() echo() output() display() 4 / 10 What is the purpose of the 'unset' function in PHP? To destroy a session To remove a variable To clear the output buffer To stop the execution of a script 5 / 10 Which of the following is a correct way to start a session in PHP? session_create() start_session() create_session() session_start() 6 / 10 What is the purpose of the 'include' statement in PHP? To include the contents of a file into another file To define a new function To perform a loop To declare a class 7 / 10 Which superglobal array in PHP is used to collect form data? $_GET $_POST $_REQUEST $_SERVER 8 / 10 What is the correct way to concatenate two strings in PHP? $string1 . $string2 $string1 + $string2 $string1 & $string2 $string1 : $string2 9 / 10 Which of the following statements is true about PHP variables? Variables must be declared before use Variables are automatically declared by PHP Variables are case-insensitive in PHP Variables cannot start with a dollar sign ($) 10 / 10 What does PHP stand for? Personal Hypertext Processor Personal Home Page Public Hypertext Processor Programming Hypermedia Processor Your score isThe average score is 0% 0% Restart quiz