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HTML Exercises Many chapters in this tutorial end with an exercise where you can check your level of knowledge.

PHP Tutorial PHP is a server scripting language, and a powerful tool for making dynamic and interactive web pages.

Python Exercises Many chapters in this tutorial end with an exercise where you can check your level of knowledge.

Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may …

Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may …

Learn JavaScript The programming language of the Web. JavaScript is easy to learn. This tutorial covers everything from basic JavaScript up to the latest 2025 version. Start learning …

XPath Standard Functions XPath includes over 200 built-in functions. There are functions for string values, numeric values, booleans, date and time comparison, node manipulation, …

Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu.

PHP Exercises Many chapters in this tutorial end with an exercise where you can check your level of knowledge.