Analyze the principle of 8%3 equals 0 in PHP

Principle analysis of 8%-3 equals 0 in PHP

In PHP, mathematical calculations are very common operations. Sometimes, we will encounter some strange results, such as the result of 8%3 is 0. Why is there such a result? This article will analyze the principle of 8%-3 equals 0 in PHP.

Before analyzing this problem, we need to clarify the operation rules of the remainder operation (%). In PHP, the remainder operation is an integer division operation, used to calculate the remainder of the division of two numbers.

First, let’s take a look at the result of dividing 8 by 3. 8 divided by 3 equals 2 with a remainder of 2, that is, the quotient is 2 and the remainder is 2. This result can be understood intuitively. 8 can be divided into two 3s and a 2. Therefore, we can get the following equation: 8 = 3 * 2 2.

Now, let’s take a look at the result of 8%3. According to the definition of remainder operation, we can divide 8 by 3 and then take the remainder. 8 divided by 3 equals 2 with a remainder of 2, so the remainder is 2. Therefore, the result of 8%3 is 2.

Next, the question comes. Why is the result of 8%3 sometimes 0? We review the previous process of calculating 8 divided by 3 and find that 8 can be expressed as a multiple of 3 plus a remainder. That is, 8 can be expressed as a multiple of 3 plus a remainder of 0.

According to the rules of remainder operation, when the divisor is divided by the remainder, the remainder is 0. This means that if the remainder of 8 divided by 3 is 0, that is, 8 can be expressed as a multiple of 3, then the result of 8%3 is 0.

So, when the remainder of 8 divided by 3 is 0, the result of 8%3 is 0.

So, let’s think about why the remainder when 8 is divided by 3 is 0. According to our previous calculation, 8 can be expressed as a multiple of 3 plus a remainder of 0, that is, 8 = 3 * 2 0. This means that 8 is a multiple of 3 with no remainder.

Combined with the above analysis, we can conclude: in PHP, the reason why 8%3 is equal to 0 is because the remainder of 8 divided by 3 is 0, that is, 8 can be expressed as a multiple of 3.

To summarize, the principle analysis of 8%-3 equal to 0 in PHP is based on the rule of remainder operation. When performing a remainder operation, if the dividend is divisible by the dividend, the remainder is 0. Therefore, when the remainder of dividing 8 by 3 is 0, the result of 8%3 is 0.

I hope this article can help you understand the principle of 8%-3 equals 0 in PHP, and help you in daily program development.

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