Shulou(Shulou.com)06/01 Report--

Editor to share with you how PHP uses the round () function to achieve rounding, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Round: rounded

The round () function rounds floating-point numbers.

Syntax: round (x, prec)

Parameters.

X is optional. The number that is required to be rounded.

Prec is optional. Specify the number of digits after the decimal point.

Description: returns the result that x is rounded according to the specified precision prec (the number of digits after the decimal point). Prec can also be negative or zero (default).

Tip: PHP does not correctly handle strings like "12300.2" by default.

Example:

Output:

10-4-5 and above are all the contents of the article "how PHP uses the round () function to round off". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.