
Explore the basics of PHP, from installation to variables, strings, operators, control statements, arrays, and loops. Learn functions, database connectivity, cookies, and email for dynamic web pages.
Learn how to install xampp on windows, use the control panel to start and stop services, and set up a web root folder to run php pages on localhost.
Learn the basics of PHP syntax as a server-side scripting language, including starting with <?php and ending with ?>, using .php files, and echoing output with semicolon-delimited statements.
Discover how PHP variables hold values or expressions, follow naming rules, and distinguish local versus global scope. See dynamic typing in action with variable examples and echo statements.
Learn to manipulate strings in PHP by using the concatenation operator, the string length function, and the position function to locate substrings, with zero-based indexing.
Learn how to use PHP operators, including assignment, arithmetic, modulus, and concatenation, plus pre/post increment and decrement, comparison, and logical operators, with practical examples.
Explore PHP control structures, including if statement, if else statement, else if statement, and switch statement, and learn how to execute code blocks based on conditions.
Explore how to use the PHP switch statement to select one of many code blocks based on an expression, with case labels, break statements, and a default fallback.
Explore arrays in PHP, including numeric, associative, and multidimensional arrays, with how to create them, assign indices or keys, and access values efficiently.
Master looping structures in PHP, including while, do-while, for, and foreach, and see how initialization, condition checks, and increments drive repeated code blocks.
Master how to use for loops and for each loops in PHP, controlling execution with initialization, condition, and increment, and iterating arrays to access each element.
Learn to create and call your own PHP functions, pass parameters, and return values using the function keyword, curly braces, and echo statements, callable from anywhere in a page.
Learn how to retrieve form data with get, post, and request methods, and use $_GET, $_POST, and $_REQUEST while recognizing visibility and security considerations.
Explore creating a MySQL database and a user_info table with columns user_id, user_name, and password, then insert, select, update, and delete records using SQL queries.
Connect to a MySQL database using the PHP connection function, then create a database and a table, select the database, define columns with types and constraints, and close the connection.
Learn to insert new records into a MySQL database using two PHP insert forms, and retrieve data with select and fetch first row via mysqli.
Learn how to filter data with the where clause and perform update and delete operations in a PHP database.
Learn how PHP sessions manage user data across pages by starting sessions, storing and retrieving session variables, and destroying sessions to control temporary data.
Learn how to create, retrieve, and delete cookies in PHP, using the cookie function with name, value, expiration, and optional path and domain.
Learn how to open files in PHP with fopen, choose modes (r, r+, w, w+, a, a+, x, x+), read and write data, and close files using fclose.
PHP (Personal Homepage or Hypertext Preprocessor) is one of the well-known programming languages. It is simple and preferable for many to build a small website and web applications. PHP has a vast community with lots of active members. WordPress, Flickr, and Wikipedia are some websites that are built with PHP. It is the most used server-side programming language by far. Approximately 75 percent of all webpages are powered by PHP.
If you are asking if there is anything special you need to know before you start learning PHP, the answer is no. Just dive in to the PHP: Documentation and get started.
One of the reasons for PHP's success is that it has really great documentation. Every concept is broken down in simple terms and explained fully. And on each page, visitors to the site comment and fill in more examples and missing details.
PHP is also one of the simplest and most straightforward scripting languages. This makes it very easy to learn.
In order to use PHP effectively, you will eventually need to learn other languages, such as:
HTML, because it's what PHP normally outputs to the browser
MySQL, because you'll want to store user data in a database
CSS, because it's how you add style to HTML pages
JavaScript, because you'll want to make your HTML pages interactive
I listed those in the order that I recommend you learn them. But I recommend that you start with PHP.