What This Document Is
This document provides an overview of PHP application development, a foundational topic within the Business Application Development (CIS 640) course at Pittsburg State University. It introduces PHP as a server-side scripting language commonly used for building dynamic web applications. The preview focuses on the core syntax, data types, and fundamental concepts needed to begin working with PHP within an HTML environment.
Why This Document Matters
This resource is essential for students learning to create web-based business applications. Understanding PHP is crucial for anyone involved in back-end web development, data handling, and server-side logic. It serves as a starting point for building more complex applications and interacting with databases. This document is used early in the course to establish a base understanding before moving into more advanced topics.
Common Limitations or Challenges
This document is an introductory overview and does *not* provide in-depth coverage of advanced PHP features, database integration, or security best practices. It will not teach you how to build a complete application from start to finish. Users will still need to practice coding, explore additional resources, and apply these concepts to real-world projects to become proficient in PHP development.
What This Document Provides
This document includes:
* An introduction to the PHP language and its history.
* An explanation of how to embed PHP code within HTML.
* A review of PHP syntax, including comments and statement termination.
* An overview of common PHP data types (integers, decimals, booleans, strings, arrays, objects).
* Information on variables, constants, and the use of the `define` statement.
* An explanation of the `$_GET` and `$_POST` arrays for handling form data.
* Guidance on coding string expressions, including concatenation and variable insertion.
* An introduction to control structures (if/else, for, while) and relational operators.
* Descriptions of several built-in PHP functions (number\_format, date, isset, empty, is\_numeric, htmlspecialchars, htmlentities, filter\_input).
This preview *does not* include detailed examples of database interaction, error handling, or advanced function usage. It also does not cover topics like object-oriented programming in PHP or the use of PHP frameworks.