   #PHP Manual Mathematical Functions rand sin

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                                     round

   (PHP 3, PHP 4 )
   round -- Rounds a float

Description

   float round ( float val [, int precision])

   Returns the rounded value of val to specified precision (number of
   digits after the decimal point). precision can also be negative or
   zero (default).

   Example 1. round() examples
   <?php
   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
   ?>

     Note: PHP doesn't handle strings like "12,300.2" correctly by
     default. See converting from strings.

     Note: The precision parameter is only available in PHP 4.

   See also ceil(), floor() and number_format().
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