SOOPRO Pathshala provides PHP Interview Questions and Answers
PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages.
Rasmus Lerdorf
It was developed in 1994.
Initially, PHP stood for Personal Home Page, but it now stands for the recursive acronym for PHP: Hypertext Preprocessor.
PHP is influenced by Perl and C. As such, PHP syntax resembles these languages.
PHP is powered by the scripting engine Zend Engine 2.
PHP4 uses Zend Engine 1 and doesn't support the OOPs concept, while PHP5 supports the OOPs concept and uses Zend Engine 2.
Not fully. PHP is partly a case sensitive language where the variable names are case-sensitive but function names are not. Also, user-defined functions aren’t case sensitive but the rest of the language is.
PEAR stands for PHP Extension and Application Repository and is an online repository of free, open-source PHP software packages. It was created as a centralized platform to manage, develop and distribute reusable PHP components.
Naming a variable in PHP is simple, but some rules must be followed. Variable names must begin with a letter or an underscore, followed by any number of letters, numbers, or underscores.