bcadd
    (PHP 3, PHP 4 , PHP 5)
bcadd -- Add two arbitrary precision numbers
Description
string 
bcadd ( string left_operand, string right_operand [, int scale])
     Adds the left_operand to the
     right_operand and returns the sum in a
     string.  The optional scale parameter is
     used to set the number of digits after the decimal place in the
     result.
    
Examples
Example 1. bcadd() example 
<?php
  $a = 1.234; $b = 5;
  echo bcadd($a, $b);     // 6 echo bcadd($a, $b, 4);  // 6.2340
  ?>
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