How php displays only 3 decimal places

This article mainly introduces how php displays only 3 decimal places, which is very detailed and has certain reference value. Friends who are interested must finish reading it!

In PHP, you can use the number_format () function to display 3 decimal places, which can format numbers by grouping numbers in thousands of places, and can set the number of decimal places that return the result, with the syntax "number_format (numeric object to be formatted, 3);".

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

The method of displaying only 3 decimal places in php

1. Create a new php file, named test.php, to explain how php sets the number of decimal places. Use the header () method to set the encoding format of the page to utf-8. Create a decimal variable for testing.

2. In the test.php file, use the number_format function to keep the number to 3 decimal places, and the result is saved in the $res variable. Output the result of decimal processing through echo.

Open the test.php file in a browser and view the results.

Summary:

1. Create a decimal variable for testing.

2. Use the number_format function to keep the number to 3 decimal places, and the result is saved in the $res variable.

3. Output the result of decimal processing through echo.

The above is all the contents of the article "how to display only 3 decimal places in php". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!