what is function can sum two big numbers php-CodePudding

I'm trying to Sum of two large numbers for some reason

<?php
$a = 50000000000.000000000000000000;
$b = 100000000000000000000000000000;
$sum = $a $b;
echo $sum;

But the output appears like this:

1.0E 290

Is there a function that can be used to sum two large numbers?

CodePudding user response：

You can use bcmath extension that provide functions to perform mathematical operations with numbers of any size and precision up to 2147483647 decimal digits, if there is sufficient memory.

Example :

<?php
$a = '50000000000.000000000000000000';
$b = '100000000000000000000000000000';
echo bcadd($a,$b);
// result : 100000000000000000050000000000