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01/03/2015 Categories: PHP. No Comments on Operators in PHP

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

 

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:

 

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:

 

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:

 

relational-operators

 

Logical Operators

 

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

 

logical-operators

 

String Operators

 

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

 

string-operators

 

Array Operators 

 

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

 

array-operators

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