How to divide integers in php

In PHP programming, if we need to perform integer division, we can use the division operator "/", for example:

$num1 = 10;
$num2 = 3;
$result = $num1 / $num2;   // $result的值为3.33333...

But sometimes, we need to get an integer result after division operation, this kind of In this case, it can be achieved through the following methods:

Method 1: Use floor() function

The floor() function is a function that rounds down to the nearest integer. An integer close to it and less than or equal to it. For example:

$num1 = 10;
$num2 = 3;
$result = floor($num1 / $num2);   // $result的值为3

Method 2: Use the intval() function

intval() function is used to get the integer value of the variable. If the variable is a floating point number, it will be converted to remove the decimals. Partial integer. For example:

$num1 = 10;
$num2 = 3;
$result = intval($num1 / $num2);   // $result的值为3

Method 3: Use the round() function

The round() function is a rounding function. You can use it to round a decimal to the nearest integer. For example:

$num1 = 10;
$num2 = 3;
$result = round($num1 / $num2);   // $result的值为3

It should be noted that if the divisor is 0, all the above methods will produce errors. Therefore, in actual programming, it is necessary to judge whether the divisor is 0 before performing the division operation.

Summary

PHP provides a variety of methods to perform division operations and get an integer result, including the floor() function, intval() function, and round() function. These methods can be used flexibly in actual programming to meet different needs.

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