PHP round function

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round

(PHP 3, PHP 4, PHP 5)

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

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

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.

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