PHP | gmp_import() Function

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:

 0

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:

 258

Related Articles:

• PHP | gmp_com() Function
• PHP | gmp_and() Function
• PHP | gmp archives

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