PHP | gmp_add() for adding large numbers
Last Updated :
13 Apr, 2018
The gmp_add() is a built-in function in PHP which is used to add two GMP numbers (GNU Multiple Precision : For large numbers).
Syntax :
gmp_add ( $num1, $num2 )
Parameters: This function accepts two GMP numbers as mandatory parameters as shown in the above syntax. These can be a GMP object in PHP version 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number. This function adds these two numbers and returns it.
Return Value: This function returns a GMP number which is sum of the two numbers passed as parameter.
Examples:
Input : "123456789", "987654321"
Output : 1111111110
Input : "5628179032615", "7136454221086"
Output : 12764633253701
Below programs illustrate the gmp_add() function in PHP :
Program 1 :
<?php
$sum = gmp_add( "5628179032615" , "7136454221086" );
echo gmp_strval( $sum );
?>
</div>
|
Output:
12764633253701
Program 2:
<?php
$sum = gmp_add( "123456789" , "987654321" );
echo gmp_strval( $sum );
?>
|
Output:
1111111110
Reference:
http://php.net/manual/en/function.gmp-add.php
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