PHP converts decimals to integers. _ PHP Tutorial

PHP converts decimals to integers. The floatfloor (floatvalue) rounding method returns the next integer not greater than the value and rounds the fractional part of the value. The return type of floor () is still float because of the float value. Float floor (float value) Rounding

Returns the next integer not greater than value and rounds the decimal part of value. The return type of floor () is still float, because the float value range is usually larger than that of integer.

The code is as follows:

Echo floor (4.3); // 4
Echo floor (9.999); // 9

Float ceil (float value) returns an integer

Returns the next integer of no less than value. if the value has a decimal part, it is entered in one place. The type returned by ceil () is still float, because the float value range is usually larger than integer.

The code is as follows:

Echo ceil (4.3); // 5
Echo ceil (9.999); // 10

Float round (float val [, int precision]) rounds a floating point number

Returns the result of rounding val by the specified precision (number of digits after decimal point. Precision can also be negative or zero (default ).

The code is as follows:

Echo round (3.4); // 3
Echo round (3.5); // 4
Echo round (3.6); // 4
Echo round (3.6, 0); // 4
Echo round (1.95583, 2); // 1.96
Echo round (1241757,-3); // 1242000
Echo round (5.045, 2); // 5.04
Echo round (5.055, 2); // 5.06

The http://www.bkjia.com/PHPjc/824751.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/824751.htmlTechArticlefloat floor (float value) rounding method returns the next integer not greater than value and rounds the fractional part of the value. The type returned by floor () is still float, because the float value...