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Rechercher une fonction PHP

gmp_init

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

gmp_init — Create GMP number

Description

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

Creates a GMP number from an integer or string.

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Parameters

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.

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Return Values

A GMP number resource in PHP 5.5 and earlier, or a GMP object in PHP 5.6 and later.

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Changelog

Version Description
5.3.2 The base was extended from 2 to 36, to 2 to 62 and -2 to -36.

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Notes

Note:

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

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Examples

Example #1 Creating GMP number

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

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Notes

Note:

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().

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Document created the 30/01/2003, last modified the 26/10/2018
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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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