gmp_init

(PHP 4 >= 4.0.4, PHP 5, PHP 7)

gmp_initCreate GMP number

Descrierea

gmp_init ( mixed $number [, int $base = 0 ] ) : GMP

Creates a GMP number from an integer or string.

Parametri

number

An integer or a string. The string representation can be decimal, hexadecimal or octal.

base

The base.

The base may vary from 2 to 36. If base is 0 (default value), the actual base is determined from the leading characters: if the first two characters are 0x or 0X, hexadecimal is assumed, otherwise if the first character is "0", octal is assumed, otherwise decimal is assumed.

Valorile întoarse

Un număr GMP sub formă de resource în PHP 5.5 și anterior, sau obiect GMP în PHP 5.6 și ulterior.

Istoricul schimbărilor

Versiune Descriere
5.3.2 The base was extended from 2 to 36, to 2 to 62 and -2 to -36.

Note

Notă:

To use the extended base introduced in PHP 5.3.2, then PHP must be compiled against GMP 4.2.0 or greater.

Exemple

Example #1 Creating GMP number

<?php
$a 
gmp_init(123456);
$b gmp_init("0xFFFFDEBACDFEDF7200");
?>

Note

Notă:

It is not necessary to call this function in order to use integers or strings in place of GMP numbers in GMP functions (such as with gmp_add()). Function arguments are automatically converted to GMP numbers, if such conversion is possible and needed, using the same rules as gmp_init().