(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
gmp_intval — Convert GMP number to integer
The int value of num.
示例 #1 gmp_intval() example
<?php
// displays correct result
echo gmp_intval("2147483647") . "\n";
// displays wrong result, above PHP integer limit
echo gmp_intval("2147483648") . "\n";
// displays correct result
echo gmp_strval("2147483648") . "\n";
?>以上示例会输出：
2147483647 2147483647 2147483648
This function returns a useful result only if the number actually fits the PHP integer (i.e., signed long type). To simply print the GMP number, use gmp_strval().