gmp_init

gmp_init

Create GMP number

GMP **gmp_init**  $num int $base

Creates a GMP number from an integer or string.

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

base The base to use for converting a representation. string

  An explicit base can be between  and .
  For bases up to , case is ignored;
  upper-case and lower-case letters have the same value.
  For bases  to ,
  upper-case letter represent the values  to
   and lower-case letter represent the values
   to .
 `2``62``36``37``62``10``35``36``61`


  If  is  then the actual
  base is determined from the leading characters of .
  If the first two characters are  or ,
  the string is interpreted as a hexadecimal integer.
  If the first two characters are  or ,
  the string is interpreted as a binary integer.
  If the first two characters are  or ,
  the string is interpreted as an octal integer.
  Moreover, if the first character is  the string
  is also interpreted as an octal integer.
  In all other cases, the string is interpreted as a decimal integer.
 `base``0``num``0x``0X``0b``0B``0o``0o``0`

gmp.return

Voorbeeld: Creating GMP number

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

Opmerking: > 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 ). Function arguments are automatically converted to GMP numbers, if such conversion is possible and needed, using the same rules as . gmp_add``gmp_init

GMP::__construct