Arithmetic Operators in PHP

Arithmetic operators are one of the sorts of operators in the PHP programming language. The arithmetic operators are very valuable for many mathematical estimations to do various types of programs to ease our problem-solving tasks. Arithmetic operators can be used only with the numerical values/numbers to perform arithmetic operations like Addition (+), Subtraction (-), Multiplication (x), Division (/), Modulus (%), and Exponentiation (**)(1st number to the power of 2nd number ).

1. Addition (+)

The addition is one of the Arithmetic operators of the PHP programming language. It needs at least two values or numbers to add.

<?php
$first = 35;
$second = 34;
$sum = $first + $second;
echo "First Variable Value : $first";
echo "<br/>";
echo "Second Variable Value : $second";
echo "<br/>";
echo "The sum of the two variables: ";
echo $sum;
?>

Output

Subtraction (-)

Subtraction is one of the Arithmetic operators of the PHP programming language. It needs at least two values or numbers to subtract.

<?php
$first = 35;
$second = 34;
$sum = $first - $second;
echo "First Variable Value : $first";
echo "<br/>";
echo "Second Variable Value : $second";
echo "<br/>";
echo "The sum of the two variables: ";
echo $sum;
?>

Output

Multiplication (x)

Multiplication is one of the Arithmetic operators of the PHP programming language. It needs at least two numerical values to multiply.

<?php
$first = 35;
$second = 34;
$sum = $first * $second;
echo "First Variable Value : $first";
echo "<br/>";
echo "Second Variable Value : $second";
echo "<br/>";
echo "The sum of the two variables: ";
echo $sum;
?>

Output

1190

Division (/)

The division is one of the Arithmetic operators of the PHP programming language. It needs at least two numbers to divide.

<?php
$first = 10;
$second = 5;
$sum = $first / $second;
echo "First Variable Value : $first";
echo "<br/>";
echo "Second Variable Value : $second";
echo "<br/>";
echo "The sum of the two variables: ";
echo $sum;
?>

Output

Modulus (%)

Modulus is one of the Arithmetic operators of this programming language. It needs at least two numbers to know the remainder value. You will get only number 1 or number 0 values for the remainder when you divide a number with any other number, but if you divide with a significant number, you will definitely get 0 value for that.

<?php
$x = 10;  
$y = 6;

echo $x % $y;
?>

Output

4int(700)
int(35)

Conclusion

I think you understood what is meant by Addition (+), Subtraction (-), Multiplication (x), Division (/), and Modulus (%).