How to round the value after division in php

php method to implement rounding of values ​​after division: 1. Create a php sample file; 2. Create two variables, namely "$myval" and "$const"; 3. "round()" The function sets the value after division, and the syntax is "$result = round($myval / $const, 2, PHP_ROUND_HALF_UP);"; 4. This can be achieved by outputting the "$result" assignment result through echo.

Operating system for this tutorial: Windows 10 system, php8.1.3 version, Dell G3 computer.

The operation of rounding the value after division in PHP can be completed using the built-in "round()" function.

The syntax is "round(float $val, int $precision = 0, int $mode = PHP_ROUND_HALF_UP)"

• $val needs to be processed Floating point number;

• #$precision is the number of decimal places retained, the default is 0

• $mode is the mode that needs to be used for rounding

Code examples are as follows:

1. Create a php sample file

<?php
////php代码
?>

2. Create two variables

$myval = 123.456;
$const = 7.89;

3 . Use the "round()" function to set the mode of taking values ​​after division, and echo will output the result.

// 除以常量值后，保留两位小数并向上（四舍五入）
$myval = 123.456;
$const = 7.89;
$result = round($myval / $const, 2, PHP_ROUND_HALF_UP);
echo $result; // 输出 15.63

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