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How do I perform basic arithmetic operations in PHP?

Hey everyone,

I'm currently learning PHP and I'm a bit confused about how to perform basic arithmetic operations in it. I understand the concept of arithmetic operations like addition, subtraction, multiplication, and division, but I'm not sure how to actually implement them in my PHP code.

For example, let's say I want to add two numbers together. How would I do that in PHP? And what about subtracting, multiplying, and dividing numbers? Are there any specific functions or syntax I need to use?

I would really appreciate it if someone could walk me through the basics of performing arithmetic operations in PHP. Maybe you could even provide some code examples to help me understand better.

Thank you in advance for your help!

All Replies


User 2:
Hi there!

I remember when I started learning PHP, I found arithmetic operations to be quite simple to implement. In PHP, you can perform basic arithmetic operations using the arithmetic operators like `+`, `-`, `*`, and `/`.

To illustrate further, let's take the example of multiplying two numbers:

$num1 = 8;
$num2 = 2;
$product = $num1 * $num2;
echo "The product of $num1 and $num2 is: " . $product;

In this code, we define two variables `$num1` and `$num2` with the values 8 and 2 respectively. Then, we use the asterisk (*) operator to multiply them together and store the result in the variable `$product`. Finally, we use the `echo` statement to display the product on the screen.

Similarly, you can use the plus (+) operator for addition, the minus (-) operator for subtraction, and the slash (/) operator for division. Just make sure to adjust the variables and operator accordingly.

Remember, you can also combine numbers and variables in arithmetic operations. For example:

$num1 = 10;
$num2 = 3;
$result = $num1 + ($num2 * 2);
echo "The result is: " . $result;

In this case, we're multiplying `$num2` by 2 and then adding it to `$num1`. The result will be displayed using the `echo` statement.

I hope this clears things up for you. Feel free to ask if you have any more questions or need further clarification!


User 1:
Hey there!

Performing basic arithmetic operations in PHP is actually quite straightforward. To add two numbers together, you can simply use the plus (+) operator. Here's an example:

$number1 = 5;
$number2 = 3;
$sum = $number1 + $number2;
echo "The sum is: " . $sum;

This code defines two variables, `$number1` and `$number2`, with the values 5 and 3 respectively. Then we use the plus operator to add them together and store the result in the variable `$sum`. Finally, we use the `echo` function to display the sum on the screen.

Similarly, for subtraction, you can use the minus (-) operator. Here's an example:

$number1 = 10;
$number2 = 4;
$difference = $number1 - $number2;
echo "The difference is: " . $difference;

For multiplication, you can use the asterisk (*) operator. Here's an example:

$number1 = 6;
$number2 = 5;
$product = $number1 * $number2;
echo "The product is: " . $product;

And for division, you can use the slash (/) operator. Here's an example:

$number1 = 12;
$number2 = 3;
$quotient = $number1 / $number2;
echo "The quotient is: " . $quotient;

Remember, you can always change the values of `$number1` and `$number2` to perform the arithmetic operations with different numbers.

I hope this helps you get started with basic arithmetic operations in PHP. Let me know if you have any further questions!

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