round

(PHP 3, PHP 4, PHP 5)

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).

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

Note: The precision parameter was introduced in PHP 4.

Parameters

val

The value to round

precision

The optional number of decimal digits to round to, defaults to 0

Return Values

The rounded value

Examples

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);    // 5.05
echo round(5.055, 2);    // 5.06
?>


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