(PHP 3, PHP 4 , PHP 5)
Subtracts the right_operand from the left_operand and returns the result in a string. The optional scale parameter is used to set the number of digits after the decimal place in the result.
Example 1. bcsub() example
<?php$a = 1.234;$b = 5; echo bcsub($a, $b); // -3echo bcsub($a, $b, 4); // -3.7660?>
bcadd().
