Basics
PHP Data Types
PHP Data Types Overview
PHP data types include integers, strings, and arrays, with type juggling.
Introduction to PHP Data Types
PHP supports various data types that allow developers to handle different kinds of data. In this guide, we'll explore the primary data types available in PHP: integers, strings, arrays, and discuss the concept of type juggling.
Integers in PHP
An integer is a non-decimal number between -2,147,483,648 and 2,147,483,647. Here's how you can declare an integer in PHP:
Strings in PHP
Strings are sequences of characters, used for storing and manipulating text. You can create a string by enclosing characters in quotes:
Arrays in PHP
Arrays are used to store multiple values in a single variable. PHP supports both indexed and associative arrays:
Type Juggling in PHP
PHP is a loosely typed language, meaning you do not have to declare data types explicitly. PHP automatically converts variables to the appropriate data type depending on its value. This is known as type juggling. For example:
Conclusion
Understanding PHP data types is crucial for writing effective and bug-free code. By knowing how PHP handles different data types and performs type juggling, you can make better decisions when manipulating data in your applications.
Basics
- Introduction
- Installation
- Running Code
- Syntax
- Variables
- Data Types
- Numbers
- Strings
- Booleans
- Type Conversion
- Operators
- Ternary Operator
- Nullsafe Operator
- If Else
- Switch
- While Loops
- For Loops
- Arrays
- Functions
- Arguments
- Scope
- Errors
- Debugging
- Classes
- Inheritance
- Interfaces
- Traits
- Anonymous Classes
- Attributes
- Security Basics
- Best Practices
- Echo / Print
- Constants
- Magic Constants
- Callback Functions
- Include
