how to round a number to digits in php code example

Example 1: php round to whole number

$int = 8.998988776636;
round($int) //Will always be 9

$int = 8.344473773737377474;
round($int) //will always be 8

Example 2: round to 2 decimal places php

round(520.34345, 2);   // 520.34