Returns the rounded value of val to specified precision (number of digits after the decimal point). precision can also be negative or zero (default).
| Caution |
PHP doesn't handle strings like "12,300.2" correctly by default. See converting from strings. |
$foo = round(3.4); // $foo == 3.0
$foo = round(3.5); // $foo == 4.0
$foo = round(3.6); // $foo == 4.0
$foo = round(3.6, 0); // equivalent with above
$foo = round(1.95583, 2); // $foo == 1.96
$foo = round(1241757, -3); // $foo == 1242000
|
Note: The precision parameter is only available in PHP 4.