How to perform addition, subtraction, multiplication and division operations in php

PHP is a very popular server-side scripting language that is widely used for web development. In PHP, addition, subtraction, multiplication and division are very common operations. This article will introduce how to use these operations in PHP.

Addition operation

Addition operation is the most common operation and is represented by the plus sign ( ) in PHP. The following is an example of a simple addition operation:

$a = 10;
$b = 20;
$c = $a + $b;
echo "a + b = " . $c;

The output result is: a b = 30

In this example, we first define two variables $a and $b, and then use addition Add them and assign the result to the variable $c. Finally, we use the echo statement to output the operation results.

Subtraction operation

Subtraction operation is also very common and is represented by the minus sign (-) in PHP. The following is a simple example of subtraction:

$a = 20;
$b = 10;
$c = $a - $b;
echo "a - b = " . $c;

The output result is: a - b = 10

This example is very similar to the addition example, except that the minus sign is used for subtraction. Operation.

Multiplication operation

Multiplication operation is also a common operation, which is represented by asterisk (*) in PHP. The following is an example of a simple multiplication operation:

$a = 10;
$b = 20;
$c = $a * $b;
echo "a * b = " . $c;

The output result is: a * b = 200

In this example, we use the asterisk to multiply the variables $a and $b , and assign the result to variable $c.

Division operation

The division operation is also very common and is represented by a slash (/) in PHP. Here is a simple example of division:

$a = 20;
$b = 10;
$c = $a / $b;
echo "a / b = " . $c;

The output is: a / b = 2

This example is very similar to the subtraction and multiplication examples, except that slashes are used to perform division operations.

Summary

In this article, we introduced four common operations in PHP: addition, subtraction, multiplication and division. These operations are widely used in web development. I hope this article can help readers better understand the basic usage of operations in PHP.

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