PHP 7 Interview Questions and Answers - LearnHowToCode SarkariResult.com Interview Questions and Answers LearnHowToCodeOnline
PHP 7 Interview Questions and Answers

PHP 7 Interview Questions and Answers

What Is PHP?
 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.

PHP has many frameworks and CMS and used for creating websites.  The PHP is very easy to create sites using its CMS. 

The PHP is an Object Oriented Programming (OOPs) language.

What is PEAR in PHP?

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.

Who is known as the father of PHP?
Rasmus Lerdorf
Explain the difference between PHP4 and PHP5.
PHP4 doesn't support oops concept and uses Zend Engine 1.
PHP5 supports oops concept and uses Zend Engine 2.


What are the popular frameworks in PHP?

  • CakePHP
  • CodeIgniter
  • Yii 2
  • Symfony
  • Zend Framework etc.
What Is PHP 7?
PHP7 is a latest and major release in the PHP Programming language that has widened several programming avenues for PHP coders.

PHP 7 is used to developed and delivered for mobile to enterprises and the cloud. PHP 7 offers faster performance, reduced memory consumption, anonymous class options, etc.
PHP 7 has been through several months of beta testing and was finally released in its stable form in December 2015, just one month after the predicted release date.

What Are New Features in PHP 7?
 List some of the features of PHP7.
  • 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
  • Spaceship operator

Who Spearheaded the Development of PHP 7?
The development of PHP 7 was spearheaded by Dmitry StogovXinchen Hui, and Nikita Popov.

Is PHP 7 Backwards Compatible?
Yes!, PHP has some backwards compatibility. 

PHP 6 will be skipped for good reasons. As is expected of a new major release, there will be some breaks in backwards compatibility.

Does PHP 7 Support MySql?
PHP 7 has removed support for the MySQL extension and affects the following as :
1.      Any queries using a mysql_connect function will not function
2.      PHP 7 only allow connections to a MySQL database using mysqli or PDO_MySQL

What Are the Benefits of PHP7?
The following benefits are :
1.      Double Speed
2.      Enables accurate type declarations
3.      64-bit windows support system
4.      Anonymous classes
5.      Supports error handling
6.      New spaceship and null coalescing operators

About Mariano

I'm Ethan Mariano a software engineer by profession and reader/writter by passion.I have good understanding and knowledge of AngularJS, Database, javascript, web development, digital marketing and exploring other technologies related to Software development.

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