Table of Contents

1. Introduction

• Overview of PHP and Its Importance
• What You Will Learn in PHP Training

1. PHP Syntax

• What Is PHP Syntax?
• Understanding PHP Tags

1. PHP Variables

• Declaring Variables in PHP
• Data Types and Variable Assignment

1. Data Types in PHP

• Types of Data in PHP (String, Integer, Float, Boolean, etc.)

1. PHP Operators

• Arithmetic Operators
• Comparison Operators
• Logical Operators
• Assignment Operators

1. Functions in PHP

• Declaring and Using Functions in PHP
• Example of Functions in PHP

1. Conclusion

• Importance of Mastering PHP Syntax
• Why Enroll in PHP Training for Advanced Learning

Introduction

PHP (Hypertext Preprocessor) dominates as one of the most widely used scripting languages in web development. Its flexibility and robust capabilities empower developers to create dynamic and interactive websites. Developers rely on PHP to build everything from small blogs to complex e-commerce platforms. If you aim to start a career in web development, mastering PHP syntax and basic structure becomes an essential step.

PHP training in Chandigarh helps you build a solid foundation in PHP development. This article explains PHP syntax and structure, covering critical topics such as PHP tags, variables, operators, data types, and functions. Whether you are a beginner or want to refine your skills, this guide equips you to begin your programming journey confidently.

PHP Syntax

What Is PHP Syntax?

PHP syntax defines the rules for writing PHP code. Every programming language has its own rules, and PHP’s structure simplifies writing commands for the server. This simplicity makes PHP beginner-friendly while maintaining enough power for experienced developers to create advanced applications.

PHP code integrates seamlessly with HTML files and executes on the server side. By wrapping PHP code in PHP tags, you can distinguish PHP commands from regular HTML, allowing the server to process PHP instructions and render static content appropriately.

PHP Tags

Every PHP script starts and ends with PHP tags. These tags define the beginning and end of PHP code:

<?php
// Write your PHP code here
?>

Anything within these tags runs as PHP code, while text outside them is treated as HTML.

Although shorthand tags exist, sticking to the standard <?php ?> format ensures better compatibility:

<?
  // PHP code (shorthand)
?>

PHP Variables

In PHP, you use variables to store and manipulate data in your script. A variable begins with a dollar sign ($) followed by its name. PHP allows you to use variables without explicit declarations. It automatically determines the data type based on the assigned value.

Here’s how you declare and initialize variables:

<?php
$greeting = "Hello, World!";
$number = 10;
$price = 19.99;
?>

In this example:

• $greeting stores a string.
• $number stores an integer.
• $price holds a floating-point value.

Data Types in PHP

PHP supports multiple data types, such as:

1. String: A sequence of characters (e.g., “Hello”).
2. Integer: A whole number (e.g., 10).
3. Float: A decimal number (e.g., 10.5).
4. Boolean: A value indicating true or false.
5. Array: A collection of values.
6. Object: An instance of a class used in object-oriented programming.
7. NULL: A special type indicating no value.

You can assign and reassign these data types to variables at runtime.

PHP Operators

PHP operators let you perform operations on variables and values.

1. Arithmetic Operators: Perform mathematical calculations like addition, subtraction, multiplication, and division.

• Example: $sum = $a + $b;

1. Comparison Operators: Compare two values and return Boolean results.

• Example: $isEqual = ($a == $b);

1. Logical Operators: Combine multiple conditions.

• Example: $isTrue = ($a && $b);

1. Assignment Operators: Assign values to variables.

• Example: $a += 5;

Functions in PHP

Functions encapsulate reusable blocks of code. You define PHP functions with the function keyword.

Here’s an example:

<?php
function greet($name) {
    echo "Hello, $name!";
}

greet("John");  // Outputs: Hello, John!
?>

In this example, the greet function takes a parameter ($name) and displays a personalized greeting. Functions allow you to reuse code, making your program more modular and manageable.

Conclusion

Mastering PHP syntax and basic structure forms the foundation for a successful web development career. PHP’s simple and powerful syntax makes it an excellent choice for beginners and experienced developers. By understanding variables, operators, data types, and functions, you can confidently build dynamic web applications.

If you want to deepen your knowledge and gain practical experience, enroll in a PHP course in Chandigarh. Expert trainers and comprehensive modules will help you become a proficient PHP developer, opening doors to career growth in the web development industry.