Interview Question for fresher Set-1

1) What is PHP?
PHP is a web language based on scripts that allow developers to dynamically create generated web pages.

2) What is the actually used PHP version?
Version 7.1 or 7.2 is the recommended version of PHP.

3) Which programming language does PHP resemble?
PHP syntax resembles Perl and C.

4) What do the initials of PHP stand for?
PHP means PHP: Hypertext Preprocessor.

5) What does PEAR stand for?
PEAR means "PHP Extension and Application Repository". It extends PHP and provides a higher level of programming for web developers.

6) How to run the interactive PHP shell from the command line interface?
Just use the PHP CLI program with the option -a as follows:
php -a

7) What is the correct and the most two common way to start and finish a PHP block of code?
The two most common ways to start and finish a PHP script are:
 <?php [   ---  PHP code---- ] ?> and <? [---  PHP code  ---] ?>

8) How do you execute a PHP script from the command line?
Just use the PHP command line interface (CLI) and specify the file name of the script to be executed as follows:
php script.php

9) What is the main difference between PHP 4 and PHP 5?
PHP 5 presents many additional OOP (Object Oriented Programming) features.

10) How can we display the output directly to the browser?
To be able to display the output directly to the browser, we have to use the special tags <?= and ?>.