gmp_init
(PHP 4 >= 4.0.4, PHP 5)
gmp_init — Create GMP number
Beschreibung
Creates a GMP number from an integer or string.
Parameter-Liste
-
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.
Rückgabewerte
Eine resource für einen GMP-Wert in PHP 5.5 oder vorher, oder ein GMP-Objekt in PHP 5.6 und später.
Changelog
| Version | Beschreibung |
|---|---|
| 5.3.2 |
The base was extended from 2 to 36, to
2 to 62 and -2 to -36.
|
Anmerkungen
Hinweis:
To use the extended base introduced in PHP 5.3.2, then PHP must be compiled against GMP 4.2.0 or greater.
Beispiele
Beispiel #1 Creating GMP number
<?php
$a = gmp_init(123456);
$b = gmp_init("0xFFFFDEBACDFEDF7200");
?>
Anmerkungen
Hinweis:
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().