<?php$resource = gmp_fact ( 50 // mixed $a);// shows the result$string = gmp_strval($resource);?>
$resource = 'GMP instance' $string = '30414093201713378043612608166064768844377641568960512000000000000'
'GMP instance'
'30414093201713378043612608166064768844377641568960512000000000000'
#1
gmp_fact
(5)
#2
(50)