<?php$resource = gmp_mul ( "12345678", // resource $a "2000" // resource $b);// shows the result$string = gmp_strval($resource);?>
$resource = 'GMP instance' $string = '24691356000'
'GMP instance'
'24691356000'
#1
gmp_mul
("12345678", "2000")
#2
("3", "2")