unsigned int

[Marek Simon]

I have mysql database for internal computer evidence and I store IP as
unsigned numeric value. It is very good for computing network ranges and
so on. But PHP do not support unsigned integer. So when I store values
to doatabase, I must convert it to string with sprintf. When reading it,
I get a string value with 10-digit number, bigger than maxint. I need to
convert it to signed int and work with it as a number (for making binary
arithmetics). I have discovered no way how to do it. Intval() or (int)
type conversion returns maxint. Converting it in mysql is anoying too,
because mysql cant do signed 32-bit int type conversion, only 64 bit.
Marek

[Marek Simon]

Marek Simon wrote:

I have mysql database for internal computer evidence and I store IP as
unsigned numeric value. It is very good for computing network ranges and
so on. But PHP do not support unsigned integer. So when I store values
to doatabase, I must convert it to string with sprintf. When reading it,
I get a string value with 10-digit number, bigger than maxint. I need to
convert it to signed int and work with it as a number (for making binary
arithmetics). I have discovered no way how to do it. Intval() or (int)
type conversion returns maxint. Converting it in mysql is anoying too,
because mysql cant do signed 32-bit int type conversion, only 64 bit.
Marek

I've just found something.
intVal(floatVal($num));

Marek

[Jonathan]

Marek Simon wrote:

I have mysql database for internal computer evidence and I store IP as
unsigned numeric value. It is very good for computing network ranges and
so on. But PHP do not support unsigned integer. So when I store values
to doatabase, I must convert it to string with sprintf. When reading it,
I get a string value with 10-digit number, bigger than maxint. I need to
convert it to signed int and work with it as a number (for making binary
arithmetics). I have discovered no way how to do it. Intval() or (int)
type conversion returns maxint. Converting it in mysql is anoying too,
because mysql cant do signed 32-bit int type conversion, only 64 bit.
Marek

Have you considered using the php/nmysql build-in functions (available
as of PHP 5.0):

PHP:
inet_ntop() http://nl2.php.net/manual/en/function.inet-ntop.php
inet_pton() http://nl2.php.net/manual/en/function.inet-pton.php

MySQL:
INET_ATON() and INET_NTOA()
http://dev.mysql.com/doc/refman/5.0/...functions.html

Jonathan

[Marek Simon]

> Have you considered using the php/nmysql build-in functions (available

as of PHP 5.0):

PHP:
inet_ntop() http://nl2.php.net/manual/en/function.inet-ntop.php
inet_pton() http://nl2.php.net/manual/en/function.inet-pton.php

MySQL:
INET_ATON() and INET_NTOA()
http://dev.mysql.com/doc/refman/5.0/...functions.html

Jonathan

I do not have PHP 5.0 (only 4.3) but I will try that mysql functions. I
did those function on my own few days ago, a bunch of text parsing and
binary shifting, not usable for writing it into each query.
Marek