PHP: Interview Questions PART-1
What is PHP?
PHP is a web language based on scripts that allow developers to dynamically create generated web pages.
What do the initials of PHP stand for?
PHP means PHP: Hypertext Preprocessor.
Which programming language does PHP resemble?
PHP syntax resembles Perl and C
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.
What is the actually used PHP version?
Version 7.1 or 7.2 is the recommended version of PHP.
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:
How to run the interactive PHP shell from the command line interface?
Just use the PHP CLI program with the option -a as follows:
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 ---] ?>
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 ?>.
What is the main difference between PHP 4 and PHP 5?
PHP 5 presents many additional OOP (Object Oriented Programming) features.