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Introduction to php.

01. Php files structure and basic syntax.

01. Php file structure. Php is a scripting language so it has merge with any web development language like html.

01. Basic syntax. 01 Start and end 02 Lines with semicolon 03 Php case sensitive 04 Variable start with $ sign.

02. What is php ? And history of php?.

02. What is php?. PHP stands for "Hypertext Preprocessor." It is a popular server-side scripting language used for web development. PHP is primarily used to create dynamic web pages and interact with databases, making it a fundamental tool for building websites and web applications. It's easy to embed PHP code within HTML, allowing developers to mix logic and presentation seamlessly. PHP is an open-source language with a large community, making it widely supported and continuously evolving..

02. History of php. PHP development began in 1993 when Rasmus Lerdorf wrote several Common Gateway Interface (CGI) programs in C, which he used to maintain his personal homepage. He extended them to work with web forms and to communicate with databases, and called this implementation "Personal Home Page/Forms Interpreter" or PHP/FI..

03. Variable and data type in php.

03. Variable in php. A variable in PHP is the name of the memory location that holds data. In PHP, a variable is declared using the $ sign followed by the variable name. The main way to store information in the middle of a PHP program is by using a variable..

03. Data type in php. Data Types define the type of data a variable can store. PHP allows eight different types of data types. All of them are discussed below. There are pre-defined, user-defined, and special data types..

04. Operators and Loops in php.

04. Operators in php. Operators. Arithmetic operators.

04. loop in php. Loop. while loop. Do while loop.

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