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gmp_import

(PHP 5 >= 5.6.1, PHP 7, PHP 8)

gmp_importImport from a binary string

说明

gmp_import(string $data, int $word_size = 1, int $flags = GMP_MSW_FIRST | GMP_NATIVE_ENDIAN): GMP

Import a GMP number from a binary string

参数

data

The binary string being imported

word_size

Default value is 1. The number of bytes in each chunk of binary data. This is mainly used in conjunction with the options parameter.

flags

Default value is GMP_MSW_FIRST | GMP_NATIVE_ENDIAN.

返回值

Returns a GMP number.

更新日志

版本 说明
8.0.0 This function no longer returns false on failure.

示例

示例 #1 gmp_import() example

<?php
$number
= gmp_import("\0");
echo
gmp_strval($number) . "\n";

$number = gmp_import("\0\1\2");
echo
gmp_strval($number) . "\n";
?>

以上示例会输出:

0
258

参见

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