gmp_sqrtrem
I think it's no longer necessary to worry about trailing nulls. This was fixed in Feb 2002 (see bug 10133)
gmp_strval
(PHP 4 >= 4.0.4, PHP 5)
gmp_strval — Converte un numero GMP in una stringa
Descrizione
string gmp_strval
( resource $gmpnumber
[, int $base
] )
Converte un numero GMP in una stringa rappresentato in base base . La base di default è 10. Le basi consentite variano dal 2 al 36.
Example #1 Converte un numero GMP in una stringa
<?php
$a = gmp_init("0x41682179fbf5");
printf ("Decimal: %s, 36-based: %s", gmp_strval($a), gmp_strval($a,36));
?>
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User Contributed Notesgmp_strval
php at richardneill dot org
19-Sep-2006 04:47
19-Sep-2006 04:47
caldwell at utm dot NoSpamPlease dot edu
22-Jul-2001 08:17
22-Jul-2001 08:17
Warning: gmp_strval may return a null terminated string (e.g., gmp_strval(gmp_init(8)) has two characters. This is because gmp is built for speed, so uses estimates based on things it can get quickly, like the number of bits in N. So since 8 is a 4 bit number, it will be allocated ceil(log10(2^4))=ceil(4*0.30103....) = 2 characters. The gmp folks feel it is the caller's responsibility (in this case the PHP interface) to check whether or not all the characters were required. PHP might have done this for us (and may in the future), but for now, you need to check (if it matters to you--it sure did in my program!).