Top 10 PHP Interview Question 2023

What is PHP?

PHP, which stands for Hypertext Preprocessor, is a server-side scripting language designed specifically for web development. It’s open-source, meaning it’s free to download and use. PHP is often embedded within HTML and is used to develop static websites, dynamic websites, or web applications. The files have the extension “.php”. PHP was created by Rasmus Lerdorf in 1994

What is PEAR in PHP?

PEAR stands for PHP Extension and Application Repository. It’s a framework and distribution system for reusable PHP components. PEAR allows you to distribute your PHP libraries and applications, and it lets you install and manage other people’s PHP libraries and applications.

Who is known as the father of PHP?

Father of PHP: Rasmus Lerdorf is known as the father of PHP. He created PHP in 1994.

What was the old name of PHP?

PHP originally stood for “Personal Home Page Tools.” It was later renamed to “PHP: Hypertext Preprocessor.

Explain the difference b/w static and dynamic websites?

  • Static websites: These are basic websites that contain fixed content and display the same information to all users. They are written in HTML and CSS and do not require interaction with a database. Updates and changes typically need to be manually edited in the code.
  • Dynamic websites: These sites retrieve data from databases and display information that can vary for different users or situations. They involve server-side scripting languages like PHP, which allow dynamic content generation and user interaction.

What is the name of scripting engine in PHP?

Scripting engine in PHP: The scripting engine in PHP is called the Zend Engine. It is responsible for parsing, interpreting, and executing PHP scripts.

Explain the difference between PHP4 and PHP5.

PHP4 was released in 2000 and focused on procedural programming.

PHP5 (2004) introduced significant advancements:

  • Full object-oriented programming support
  • Improved performance
  • Enhanced error handling
  • Better XML and SQLite support

What are the popular Content Management Systems (CMS) in PHP?

Popular Content Management Systems (CMS) in PHP:

  • WordPress
  • Joomla
  • Drupal
  • Magento

What are the popular frameworks in PHP?

There are several popular frameworks in PHP that facilitate web application development, including:

  • Laravel
  • Symfony
  • CodeIgniter
  • Yii

Which programming language does PHP resemble to?

PHP is most similar to Perl and C, as it shares many of the same syntax and constructs. It also resembles Python in terms of its simplicity and readability.

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