PHP Variables, Data Types and Operators

Опубликовано: 24 Март 2026
на канале: Sriramasubramaniam Nagarajan

PHP Variables, Data Types and Operators | PHP Tutorial

Variables are the storage location, which can store the values for the later manipulations in the program.
The main advantage of the PHP variable declaration is, it does not requires to specify the data type keyword separately such as int, char, float, double or string etc.

Basic Rules for Variable Declaration
● Variable name must always begin with a $ symbol.
● Variable name can never start with a number.
● Variable names are case-sensitive.

PHP scripting language supports 13 primitive data types.
Data Types plays important role in all programming languages to classify the data according to the logics.
PHP supports the following data types.
1. String 5. Array
2. Integer 6. Object
3. Float 7. NULL
4. Boolean 8. Resource

Operator is a symbol which is used to perform mathematical and logical operations in the programming languages.
Different types of operator in PHP are:
1. Arithmetic operators
2. Assignment operators
3. Comparison operators
4. Increment/Decrement operators
5. Logical operators
6. String operators

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