How to implement integers that need to be divided in php

In PHP, if we need to get an integer for division, we can use the PHP built-in function intdiv(), which can be used in PHP7 and higher versions. In this article, we will explore how to use the intdiv() function and how to simulate this functionality in PHP5.

PHP7 version introduction

intdiv() function is a new feature added in PHP7 and higher versions. This function divides two numbers and returns the integer part of the result, also known as "integer division". Let us look at the following example:

$a = 10;
$b = 3;
$c = intdiv($a, $b);
echo $c; // 输出结果为：3

In this example, we divide two variables $a and $b and assign the result to $c variables. $c The final result of the variable is the integer part of the division result, that is, 3.

In some cases, we need to get the remainder of the division result. In this case, we can use the PHP built-in function % (i.e. remainder operator), similar to the following example:

$a = 10;
$b = 3;
$c = $a % $b;
echo $c; // 输出结果为：1

PHP5 version implementation method

If your PHP application is running on PHP5 or lower, you cannot use the intdiv() function. In this case, you can use the floor() function to simulate the behavior of the intdiv() function.

Here is an example to simulate the intdiv() function:

function intdiv($a, $b){
    return ($a - ($a % $b)) / $b;
}

In this function, we use $a minus ## The remainder of #$a and $b, then divide it by $b. The result returned by this function is the integer portion of the division operation.

Let us look at an example:

$a = 10;
$b = 3;
$c = intdiv($a, $b);
echo $c; // 输出结果为：3

Through this method, we can simulate the behavior of the

intdiv() function in PHP5 to achieve the same goal as using # in PHP7 ##intdiv() function has the same result.

Conclusion

In this article, we introduced how to use the PHP built-in function

intdiv()

to get the integer result of division. We also covered how to use the floor() function in PHP5 and below to simulate the behavior of the intdiv() function. These tips can help you handle number crunching tasks more efficiently.

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