A brief analysis of how to perform addition, subtraction, multiplication and division operations in PHP

PHP is a popular server-side scripting language primarily used for developing web applications. In PHP, you can easily write arithmetic operations such as addition, subtraction, multiplication and division. This article will introduce how to perform addition, subtraction, multiplication and division operations in PHP.

1. Addition operation in PHP

In PHP, you can use the " " operator for addition operation. The following is a simple example that demonstrates how to use PHP to perform addition operations:

<?php
$num1 = 10;
$num2 = 20;
$total = $num1 + $num2;
echo "两个数的和是 " . $total;
?>

In the above example, we defined two variables $num1 and $num2, which are 10 and 20 respectively. Then use the addition operator " " to add $num1 and $num2, and assign the result to the variable $total. Finally, use the echo statement to output the value of the variable $total.

2. Subtraction operation in PHP

In PHP, you can use the "-" operator for subtraction operation. The following is a simple example that demonstrates how to use PHP to perform subtraction operations:

<?php
$num1 = 20;
$num2 = 10;
$total = $num1 - $num2;
echo "两个数的差是 " . $total;
?>

In the above example, we defined two variables $num1 and $num2, which are 20 and 10 respectively. Then use the subtraction operator "-" to subtract $num2 from $num1 and assign the result to the variable $total. Finally, use the echo statement to output the value of the variable $total.

3. Multiplication operation in PHP

In PHP, you can use the "*" operator for multiplication operation. The following is a simple example that demonstrates how to use PHP to perform multiplication operations:

<?php
$num1 = 10;
$num2 = 20;
$total = $num1 * $num2;
echo "两个数的积是 " . $total;
?>

In the above example, we defined two variables $num1 and $num2, which are 10 and 20 respectively. Then use the multiplication operator "*" to multiply $num1 and $num2, and assign the result to the variable $total. Finally, use the echo statement to output the value of the variable $total.

4. Division operation in PHP

In PHP, you can use the "/" operator for division operation. The following is a simple example that demonstrates how to use PHP to perform division operations:

<?php
$num1 = 20;
$num2 = 5;
$total = $num1 / $num2;
echo "两个数的商是 " . $total;
?>

In the above example, we defined two variables $num1 and $num2, which are 20 and 5 respectively. Then use the division operator "/" to divide $num1 by $num2, and assign the result to the variable $total. Finally, use the echo statement to output the value of the variable $total.

To sum up, this article introduces in detail how to perform operations such as addition, subtraction, multiplication and division in PHP. PHP is a powerful language that can easily perform various arithmetic operations, allowing developers to implement web applications more efficiently.

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