PHP - round

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Metóda - round

(PHP 4, PHP 5, PHP 7)

The round() function returns a rounded number.

Procedurálne

• function round (float $val, int $precision = 0, int $mode = PHP_ROUND_HALF_UP) : float

Parametre

Názov	Dátový typ	Predvolená hodnota	Popis
$val	float		The value.
$precision	int	0	The accuracy of rounding. It can also be negative.
$mode	int	PHP_ROUND_HALF_UP	Specifies how the function should round the half of a number (tenths, hundredths, ...). PHP_ROUND_HALF_UP - Rounds the half up (1.5 will be 2). PHP_ROUND_HAL­F_DOWN - Rounds the half down (1.5 will be 1). PHP_ROUND_HAL­F_EVEN - Rounds the half to the nearest even number (1.5 will be 2). PHP_ROUND_HAL­F_ODD - Rounds the half to the nearest odd number (1.5 will be 1).

Mávratovej hodnoty

Vracia: float

The rounded number.

Príklady

<?php
echo round(5) . '<br />';
echo round(5.1) . '<br />';
echo round(5.4) . '<br />';
echo round(5.5) . '<br />';
echo round(5.8) . '<br />';
echo round(5483.47621, 2) . '<br />';
echo round(5483.47621, -2) . '<br />';
echo round("4,8") . "<br />";   // the compiler cuts it just to 4
echo round("4.8") . "<br />";   // the compiler is able to convert the data type
echo round(4, 8) . "<br />";
echo round(4.8) . "<br />";
echo round(4.5, 0, PHP_ROUND_HALF_DOWN) . "<br />";
echo round(4.5, 0, PHP_ROUND_HALF_UP) . "<br />";