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# gmp_init

(PHP 4 >= 4.0.4, PHP 5)

gmp_init -- Create GMP number

## Description

resource gmp_init ( mixed number [, int base] )

Creates a GMP number from an integer or string. String representation can be decimal, hexadecimal or octal. Optional parameter `base` is available since PHP 4.1.0. Its default value is `0`.

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.

Example 1. Creating GMP number

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

> Note: It is not necessary to call this function if you want to use integer or string in place of GMP number in GMP functions, like 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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