PHP-Division takes integers

Source: Internet
Author: User

Solution Objective: Division of a number to take an integer

1.round-rounding of floating-point numbers float Round (float $val [, int $precision])


Returns the result of rounding Val based on the specified precision precision (number of digits after decimal point). Precision can also be negative or 0 (the default value).


Example #1 round () example


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  1. <?php

  2. Echo round (3.4); //3

  3. Echo round (3.5); //4

  4. Echo round (3.6); //4

  5. Echo Round (3.6, 0); //4

  6. Echo Round (1.95583, 2); //1.96

  7. Echo Round (1241757,-3); //1242000

  8. Echo Round (5.045, 2); //5.05

  9. Echo Round (5.055, 2); //5.06

  10. ?>


Note:php does not correctly handle strings that resemble "12,300.2" by default. See string conversions to numeric values.




2.ceil-into a method rounding (rounding up) float ceil (float $value)


Returns the next integer not less than value, in which value is entered if there is a fractional part. The type returned by Ceil () is still float, because the range of float values is usually larger than the integer.


Example #1 ceil () example

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    1. <?PHP&NBSP;&NBSP;

    2. echo ceil (4.3);  // 5   

    3. echo  ceil (9.999),  // 10    

    4. ?>   



3.floor-Rounding (rounding down) float Floor (float $value)


Returns the next integer not less than value, rounding out the fractional part of value. The type returned by floor () is still float, because the range of float values is usually larger than the integer.


Example #1 Floor () example


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    1. <?php

    2. echo floor (4.3); //4

    3. echo Floor (9.999); //9

    4. ?>


This article from "I am a phper, simple and naïve" blog, please be sure to keep this source http://thinkforphp.blog.51cto.com/8733331/1784636

PHP-Division takes integers

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