PHP | gmp_import() Function

PHP | gmp_import() Function

Last Updated : 25 Jun, 2018

The gmp_import() function is an inbuilt function in php which imports a GMP number(GNU Multiple Precision: For large numbers) from a binary string. Syntax:

GMP gmp_import ( string $data, int $word_size, int $options )

Parameters: The gmp_import() function accepts three parameters as mentioned above and described below:

$data: It is one of the required parameters, contains the binary string which is supposed to be imported.
$word_size: This is also a parameter of the gmp_import() function. It contains the number of bytes in each chunk of binary data. This parameter is mainly used simultaneously with the options parameter. The default value of this parameter is 1.
$options: This parameter has default value of GMP_MSW_FIRST | GMP_NATIVE_ENDIAN.

Return Value: The function returns a GMP number on success otherwise returns FALSE on failure. Below programs illustrate the gmp_import() function in PHP: Program 1:

php

<?php
// php code implementing gmp_import() 
// function

$number = gmp_import("\0");

// The gmp_strval() returns the 
// string value of the gmp number
echo gmp_strval($number) . "\n";

?>

Output:

Program 2:

php

<?php
// php code implementing the
// gmp_import() function
 
$number = gmp_import("\0\1\2");
 
// The strval() returns the string 
// value of the gmp number 
echo gmp_strval($number) . "\n";
 
?>

Output:

Related Articles:

Reference: php.net/manual/en/function.gmp-import.php

PHP | gmp_import() Function

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