Three methods for retaining decimal places in PHP

In the following tutorial, we use PHP to retain two decimal places. There are three implementation methods:/*** several methods for PHP to retain two decimal places * @ linkhttp: // www.phpddt.com */$ num = 10.4

In the following tutorial, you can use PHP to retain two decimal places:

/*** PHP several methods to retain two decimal places * @ link http://www.phpddt.com */$ num = 10.4567; // The first method: Use round () rounds the floating point number to echo round ($ num, 2); // 10.46 // second: format the string $ format_num = sprintf ("%. 2f ", $ num); echo $ format_num; // 10.46 // The third type: the number_format () echo number_format ($ num, 2) function that uses a thousand-bit grouping to format numbers ); // 10.46 // or the following echo number_format ($ num, 2 ,'. ', ''); // 10/46

About number_format () function extensions: http://www.w3school.com.cn/php/func_string_number_format.asp