(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
gmp_mul — Multiply numbers
gmp_mul(GMP|int|string $num1, GMP|int|string $num2): GMP
Multiplies num1 by num2 and returns the result.
num1 A number that will be multiplied by num2.
A GMP object, an int, or a string that can be interpreted as a number following the same logic as if the string was used in gmp_init() with automatic base detection (i.e. when base is equal to 0).
num2 A number that will be multiplied by num1.
A GMP object, an int, or a string that can be interpreted as a number following the same logic as if the string was used in gmp_init() with automatic base detection (i.e. when base is equal to 0).
A GMP object.
Example #1 gmp_mul() example
<?php
$mul = gmp_mul("12345678", "2000");
echo gmp_strval($mul) . "\n";
?> The above example will output:
24691356000
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https://www.php.net/manual/en/function.gmp-mul.php