Question:- What is PHP?
Answer:- PHP stands for Hypertext Preprocessor. It is an open source server-side scripting language which is widely used for web development. It supports many databases like MySQL, Oracle, Sybase, Solid, PostgreSQL, generic ODBC etc.
Question:- What is PEAR in PHP?
Answer:- PEAR is a framework and repository for reusable PHP components. PEAR stands for PHP Extension and Application Repository. It contains all types of PHP code snippets and libraries.It also provides a command line interface to install "packages" automatically.
Question:- Who is known as the father of PHP?
Answer:- Rasmus Lerdorf
Question:- What was the old name of PHP?
Answer:- The old name of PHP was Personal Home Page.
Question:- What is the name of scripting engine in PHP?
Answer:- The scripting engine that powers PHP is called Zend Engine 2.
Question:- Explain the difference between PHP4 and PHP5.
Answer:- PHP4 doesnt support oops concept and uses Zend Engine 1. PHP5 supports oops concept and uses Zend Engine 2.
Question:- What are the popular Content Management Systems (CMS) in PHP?
Answer:- WordPress: WordPress is a free and open-source content management system (CMS) based on PHP & MySQL. It includes a plug-in architecture and template system. It is mostly connected with blogging but supports another kind of web content, containing more traditional mailing lists and forums, media displays, and online stores. Joomla: Joomla is a free and open-source content management system (CMS) for distributing web content, created by Open Source Matters, Inc. It is based on a model-view-controller web application framework that can be used independently of the CMS. Magento: Magento is an open source E-trade programming, made by Varien Inc., which is valuable for online business. It has a flexible measured design and is versatile with many control alternatives that are useful for clients. Magento utilizes E-trade stage which offers organization extreme E-business arrangements and extensive support network. Drupal: Drupal is a CMS platform developed in PHP and distributed under the GNU (General Public License).
Question:- What are the popular frameworks in PHP?
Answer:- CakePHP, CodeIgniter, Yii 2, Symfony, Zend Framework etc.
Question:- Which programming language does PHP resemble to?
Answer:- PHP has borrowed its syntax from Perl and C.
Question:- List some of the features of PHP7.
Answer:- Scalar type declarations, Return type declarations, Null coalescing operator (??), Spaceship operator, Constant arrays using define(), Anonymous classes, Closure::call method, Group use declaration, Generator return expressions, Generator delegation, Space ship operator
Question:- What is "echo" in PHP?
Answer:- PHP echo output one or more string. It is a language construct not a function. So the use of parentheses is not required. But if you want to pass more than one parameter to echo, the use of parentheses is required.
Question:- What is "echo" Syntax in PHP?
Answer:- void echo ( string $arg1 [, string $... ] )