• # Operators

Logical operators in programming are like a set of tools that help us decide what to do depending on how things look. Logical operators tell the computer to do something based on how two different things compare.

• The addition operator returns the sum of two variables.

• #### Php

##### Example of addition operator in php.
``````<?php
\$age = 20;

print(\$age + 1); // 21
``````
• ## Subtraction Arithmetic Operators

• The subtraction operator returns the difference of two variables.

• #### Php

##### Example of subtraction operator in php.
``````<?php
\$age = 20;

print(\$age - 2); // 18
``````
• ## Multiplication Arithmetic Operators

• The multiplication operator returns the product of two variables.

• #### Php

##### Example of multiplication operator in php.
``````<?php
\$age = 20;

print(\$age * 3); // 60
``````
• ## Division Arithmetic Operators

• The division operator returns the quotient of two variables.

• #### Php

##### Example of division operator in php.
``````<?php
\$age = 20;

print(\$age / 2); // 10
``````
• ## Modulus Arithmetic Operators

• The modulus operator returns the remainder of two variables.

• #### Php

##### Example of modulus operator in php.
``````<?php
\$age = 20;

print(\$age % 9); // 2
``````
• ## Exponentiation Arithmetic Operators

• The exponentiation operator returns the power of two variables.

• #### Php

##### Example of exponentiation operator in php.
``````<?php
\$age = 2;

print(\$age ** 3); // 8
``````
• ## Equal Comparison Operators

• The equal operator checks if two variables are equal value.

• #### Php

##### Example of equal operator in php.
``````<?php
\$age = 20;

print(\$age == 20); // true
``````
• ## Equal Type Comparison Operators

• The equal type operator checks if two variables are equal value and type.

• #### Php

##### Example of equal type operator in php.
``````<?php
\$age = '20';

print(\$age === '20'); // true
``````
• ## Not Equal Comparison Operators

• The not-equal operator checks if two variables are not equal value.

• #### Php

##### Example of not-equal operator in php.
``````<?php
\$age = 20;

print(\$age != 18); // true
``````
• ## Not Equal Type Comparison Operators

• The not-equal type operator checks if two variables are not equal value and type.

• #### Php

##### Example of not-equal type operator in php.
``````<?php
\$age = 20;

print(\$age !== '20'); // true
``````
• ## Greater Than Comparison Operators

• The greater-than operator checks if the value of the first variable is greater than the second.

• #### Php

##### Example of greater-than operator in php.
``````<?php
\$age = 20;

print(\$age > 18); // true
``````
• ## Less Than Comparison Operators

• The less-than operator checks if the value of the first variable is less than the second.

• #### Php

##### Example of less-than operator in php.
``````<?php
\$age = 20;

print(\$age < 21); // true
``````
• ## Greater Than or Equal Comparison Operators

• The greater-than or equal-to operator checks if the value of the first variable is greater than or equal to the second.

• #### Php

##### Example of greater-than or equal-to operator in php.
``````<?php
\$age = 20;

print(\$age >= 20); // true
``````
• ## Less Than or Equal Comparison Operators

• The less-than or equal-to operator checks if the value of the first variable is less than or equal to the second.

• #### Php

##### Example of less-than or equal-to operator in php.
``````<?php
\$age = 20;

print(\$age <= 20); // true
``````