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# gmp_init

(PHP 4 >= 4.0.4, PHP 5)

gmp_init -- Create GMP number

## Description

resource gmp_init ( mixed number)

Creates a GMP number from an integer or string. String representation can be decimal or hexadecimal. In the latter case, the string should start with 0x.

示範 1.Creating GMP number
`<?php $a = gmp_init(123456); $b = gmp_init("0xFFFFDEBACDFEDF7200"); ?>`

> 備注: 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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