Merge pull request #9 from pradipchaudhary/fea#1

demo file, cover image

README.md

@@ -4,6 +4,8 @@ Welcome to the PHP Fundamentals repository! This repository is designed to help
 
 🚀 #PHP #PhpFundamentals #PhpBasic #OpenSource
 
+![learn PHP Fundamentals](./assets/php-fundamental.jpg)
+
 ### **PHP Basics:**
 
 ---

demo.md

@@ -0,0 +1,154 @@
+# PHP Fundamentals
+
+Welcome to the PHP Fundamentals repository! This repository is designed to help you learn and practice the basics of PHP programming language.
+
+🚀 #PHP #PhpFundamentals #PhpBasic #OpenSource
+
+### **PHP Basics:**
+
+---
+
+#### 1. **Introduction:**
+
+-  PHP (Hypertext Preprocessor) is a server-side scripting language widely used for web development.
+-  Executed on the server, PHP generates dynamic content before sending it to the browser.
+
+#### 2. **Syntax:**
+
+-  PHP code is embedded within HTML.
+-  Start with `<?php` and end with `?>`.
+
+```php
+<?php
+   // PHP code here
+?>
+```
+
+#### 3. **Variables:**
+
+In the context of mathematics, computer science, and programming, a variable is a symbolic name or identifier associated with a value that may be changed during the execution of a program. Essentially, it is a storage location (typically in computer memory) paired with an associated symbolic name (an identifier), which contains some known or unknown quantity or information referred to as a "value."
+
+-  Prefix with `$`.
+-  Case-sensitive.
+-  No need to declare data types.
+
+```php
+$name = "John";
+$age = 25;
+```
+
+#### 4. **Data Types:**
+
+-  Strings, Integers, Floats, Booleans, Arrays, Objects, NULL.
+
+#### 5. **Operators:**
+
+-  Arithmetic, Assignment, Comparison, Logical, Increment/Decrement.
+
+```php
+$x = 10;
+$y = 5;
+$sum = $x + $y;
+```
+
+### **Control Structures:**
+
+#### 6. **Conditionals:**
+
+-  `if`, `else`, `elseif`.
+
+```php
+$grade = 85;
+if ($grade >= 60) {
+   echo "Pass";
+} else {
+   echo "Fail";
+}
+```
+
+#### 7. **Loops:**
+
+-  `for`, `while`, `do-while`, `foreach`.
+
+```php
+for ($i = 0; $i < 5; $i++) {
+   echo $i;
+}
+```
+
+### **Functions:**
+
+#### 8. **Functions:**
+
+-  Reusable blocks of code.
+-  Defined using `function`.
+
+```php
+function greet($name) {
+   echo "Hello, $name!";
+}
+```
+
+#### 9. **Arrays:**
+
+-  Ordered maps.
+-  Numerical and associative arrays.
+
+```php
+$colors = array("Red", "Green", "Blue");
+$info = array("name" => "John", "age" => 30);
+```
+
+### **File Handling:**
+
+#### 10. **File Handling:**
+
+-  Reading and writing to files.
+
+```php
+$file = fopen("example.txt", "r");
+echo fread($file, filesize("example.txt"));
+fclose($file);
+```
+
+### **Database Connectivity:**
+
+#### 11. **Database Connection:**
+
+-  Using `mysqli` or `PDO` for database interactions.
+
+```php
+$conn = new mysqli("localhost", "username", "password", "database");
+```
+
+### **Security:**
+
+#### 12. **Security:**
+
+-  Protect against SQL injection and XSS attacks.
+-  Use prepared statements for database queries.
+
+```php
+$stmt = $conn->prepare("INSERT INTO table (column) VALUES (?)");
+$stmt->bind_param("s", $value);
+$stmt->execute();
+```
+
+### **Conclusion:**
+
+These notes cover the basics of PHP, but there's much more to explore. PHP is versatile and widely used for web development, from simple scripts to complex applications.
+
+For in-depth learning, refer to the official [PHP Documentation](https://www.php.net/manual/en/) and explore real-world projects. Happy coding!
+
+## License
+
+This repository is licensed under the [MIT License](./LICENSE), allowing for widespread use and collaboration.
+
+## Contact
+
+For any questions, feedback, or collaboration inquiries, feel free to reach out:
+
+-  Email: [email protected]
+<!-- -  Twitter: [@YourTwitterHandle](https://twitter.com/YourTwitterHandle) -->
+
+Feel free to customize the content as needed to better suit your repository and audience. Let me know if you need further assistance!