Operators in PHP

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Introduction

Operators are used in expressions to perform operations on operands. There are several operators supported by PHP which are categorized into following categories:

• Arithmetic operators
• Assignment operators
• Comparison operators
• Increment/Decrement operators
• Logical operators
• String operators
• Array operators

This article is a part of our advanced java and web technologies tutorial.

Arithmetic Operators

PHP arithmetic operators are used along with numbers to perform operations like addition, subtraction, multiplication etc. Below is a list of arithmetic operators:

Assignment Operators

PHP assignment operators are used in assignment expressions to store the value of expression in to a variable. Below is a list of assignment operators:

Increment/Decrement Operators

The increment/decrement operators are used to increment the value of variable by 1 or decrement the value of variable by 1. The increment operator is ++ and decrement operator is –.

Relational or Comparison Operators

PHP comparison operators are used to compare two values and are frequently seen in Boolean expressions. Below is a list of comparison operators:

Logical Operators

PHP logical operators are used find the Boolean value of multiple conditional expressions. Below is a list of logical operators:

String Operators

PHP provides two operators which are used with strings only. They are listed below:

Array Operators 

Below is a list of operators which are used with arrays:

Next let’s learn about control statements in PHP.

Suryateja Pericherla

Suryateja Pericherla, at present is a Research Scholar (full-time Ph.D.) in the Dept. of Computer Science & Systems Engineering at Andhra University, Visakhapatnam. Previously worked as an Associate Professor in the Dept. of CSE at Vishnu Institute of Technology, India.

He has 11+ years of teaching experience and is an individual researcher whose research interests are Cloud Computing, Internet of Things, Computer Security, Network Security and Blockchain.

He is a member of professional societies like IEEE, ACM, CSI and ISCA. He published several research papers which are indexed by SCIE, WoS, Scopus, Springer and others.