What is PHP? Why do we use it in web development?
These dynamic web pages or applications have been server-side programmed using PHP. It will act as an intermediary between the front-end and back-end with server-side processing of data.
How is PHP different from JavaScript and other programming languages?
PHP is a server-side language, meaning it runs on the server for processing data, whereas JavaScript is client-side and runs on the user's browser for any kind of manipulation and effects on the webpage.
What are some of the features that characterize PHP?
The key features of PHP include database connectivity, dynamic content generation, and compatibility with multiple web servers and operating systems.
Brief PHP framework and how it helps developers.
A PHP framework consists of a collection of pre-built software libraries and tools that help the developer to create applications faster by making their lives easier through the availability of reusable code and simplified processes such as routing, database connections, and security.
Define Database. What is the role of PHP to connect to it?
A database contains data, organized by schemas about certain data elements. PHP connects database structures, such as MySQL databases, for business administration, to store, access, and maintain data in a website or application using SQL queries.
How does GET differ from the POST Method in PHP?
GET is used for sending data in the URL, while POST is made for sending data through the body of requests, which makes it less susceptible to access by unwanted persons to sensitive information, such as passwords or payment information.
What are sessions and cookies in PHP, and how do they work?
A session is the storage of data directly onto the server while cookies are used for information storage on the user's browser activity. The focus of both is on maintaining a login status for users along with their preferences.
What is Object-Oriented Programming in PHP?
Object-oriented programming is a way of organizing code into objects (which are instances of classes), making them more modular, reusable, and easier to maintain.
How do you catch errors using PHP?
Imports PHP error-catching features such as try and catch, log-in errors, and custom error messages with which it gets managed and caught to keep the application running uninterruptedly.
What are some techniques for optimizing PHP code for better performance?
Optimizing PHP code can be achieved through ways like reducing database queries, caching of data, using better efficient algorithms, and minimizing unnecessary codes for better load times and performance.
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