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Q:

What are the arithmetic operators in PHP?

Hey everyone,
I'm new to PHP and currently learning about arithmetic operations in the language. I understand that there are various operators like addition, subtraction, multiplication, and division, but I'm not sure which ones are specifically used in PHP. Could someone please enlighten me on the arithmetic operators in PHP and how they work? I would greatly appreciate any explanations or examples you could provide. Thanks in advance!

All Replies

cyrus80

Hey there!

I'm glad you're exploring PHP and its arithmetic operators. I can definitely share my personal experience with them.

In PHP, arithmetic operators are fundamental for performing mathematical calculations. The common ones are:

- Addition: `+`
This operator allows you to add two numbers together. For example, `3 + 5` would give you the result of 8.

- Subtraction: `-`
The subtraction operator is used to subtract one number from another. For instance, if you have `10 - 4`, the result would be 6.

- Multiplication: `*`
With the multiplication operator, you can multiply two numbers. For example, `2 * 6` would give you the result of 12.

- Division: `/`
The division operator divides one number by another. So, if you have `15 / 3`, the result would be 5.

In addition to these basic arithmetic operators, PHP provides a few more:

- Modulus: `%`
The modulus operator returns the remainder of the division between two numbers. For instance, if you do `13 % 5`, the result would be 3, as 13 divided by 5 leaves a remainder of 3.

- Exponentiation: `**`
The exponentiation operator raises a number to a power. For example, `2 ** 4` would give you 16, as 2 raised to the power of 4 is 16.

It's worth mentioning that PHP also offers shorthand assignment operators, like `+=`, `-=` and more. These allow you to perform an arithmetic operation and assign the new value to a variable in one go.

I hope this provides some clarity on the arithmetic operators in PHP. If you have any further questions or need further assistance, feel free to ask. Happy coding!

zabshire

Hey there,
It's great to see that you're diving into PHP! I can definitely help you out with the arithmetic operators in PHP based on my own experience.

PHP offers the standard arithmetic operators that you might be familiar with from math class:
- Addition: `+`
- Subtraction: `-`
- Multiplication: `*`
- Division: `/`

In addition to these operators, PHP also has a few specific ones that might come in handy:

- Modulus: `%`
The modulus operator returns the remainder of a division operation. For example, `10 % 3` would result in 1, as 10 divided by 3 has a remainder of 1.

- Exponentiation: `**`
The exponentiation operator allows you to raise a number to a power. For instance, `2 ** 3` would give you 8, as 2 raised to the power of 3 equals 8.

It's worth mentioning that PHP also provides some shorthand assignment operators that allow you to combine arithmetic operations with assignment. For example, if you have a variable `$num` set to 5, you can increment it by 2 using the shorthand operator like this: `$num += 2`. This would update the value of `$num` to 7.

I hope this helps you get a better understanding of the arithmetic operators in PHP! Let me know if you have any further questions or if there's anything else I can assist you with.

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