gmp_import

(PHP 5, PHP 7 >= 5.6.1)

gmp_import — Import from a binary string

说明

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

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.
options: Default value is GMP_MSW_FIRST | GMP_NATIVE_ENDIAN.

返回值

Returns a GMP number 或者在失败时返回 FALSE .

范例

Example #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" ;
 ?>

以上例程会输出：

0

528

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