PHP (Hypertext Preprocessor) hai ek popular, open-source scripting language jo dynamically generated web pages create karne ke liye design kiya gaya hai. PHP ki Key Features: 1. Server-side Scripting: PHP scripts server par execute hote hain aur dynamically generated web pages return karte hain. 2. Open-source: PHP open-source hai, jiske kaaran yeh free aur customizable hai. 3. Cross-platform: PHP Windows, macOS, aur Linux operating systems par run kar sakta hai. 4. Extensive Libraries: PHP mein extensive libraries aur frameworks hain jo development ko simplify karte hain. 5. Security: PHP mein robust security features hain jo data protection aur secure authentication ko ensure karte hain. PHP ka Use: 1. Web Development: PHP web applications, websites, aur web services create karne ke liye widely used hai. 2. Content Management Systems (CMS): PHP popular CMS platforms jaise ki WordPress, Joomla, aur Drupal ke liye widely used hai. 3. E-commerce: PHP e-commerce platforms jaise ki Magento, OpenCart, aur PrestaShop ke liye widely used hai. 4. Social Networking: PHP social networking platforms jaise ki Facebook aur Twitter ke liye widely used hai. PHP ki Advantages: 1. Easy to Learn: PHP relatively easy hai learn karne ke liye, especially agar aap already programming languages jante hain. 2. Fast Development: PHP ki extensive libraries aur frameworks development ko fast aur efficient banate hain. 3. Cost-effective: PHP open-source hai, jiske kaaran yeh free aur cost-effective hai. 4. Large Community: PHP ki large aur active community hai jo support, resources, aur guidance provide karti hai. PHP ki Disadvantages: 1. Security Risks: PHP ki security risks hai, especially agar aap proper security measures implement nahin karte hain. 2. Performance Issues: PHP ki performance issues hai, especially agar aap large aur complex applications develop karte hain. 3. Compatibility Issues: PHP ki compatibility issues hai, especially agar aap different operating systems aur web servers par applications run karte hain.