On Tue, July 4, 2006 7:35 am, Mathijs wrote:
//Do if VALIDATE_CHECK1 is set BUT NOT when VALIDATE_CHECK3 is set.
if ($flag2 self::VALIDATE_CHECK1 $flag2 ~self::VALIDATE_CHECK3)
Did you check operator precedence for versus ?
Perhaps you just need parentheses...
I'm also not at all sure the
Mathijs wrote:
Hello there.
I am working with some bitwise Operators for validating some variables.
Now i need to know if an certain bit is NOT set and an other bit IS set.
Example.
?php
const VALIDATE_CHECK1 = 1;
const VALIDATE_CHECK2 = 2;
const VALIDATE_CHECK3 = 4;
const
Jochem Maas wrote:
Mathijs wrote:
Hello there.
I am working with some bitwise Operators for validating some variables.
Now i need to know if an certain bit is NOT set and an other bit IS set.
Example.
?php
const VALIDATE_CHECK1 = 1;
const VALIDATE_CHECK2 = 2;
const VALIDATE_CHECK3 = 4;
Mathijs wrote:
Jochem Maas wrote:
Mathijs wrote:
...
Thank you very much.
This seems to work :).
cool. heres's a couple of funcs that might help you to understand bitwise
operations better:
?php
/* whether there is only 1 single bit set or not */
function single_bit_set(/*int*/ $i)
Jochem Maas wrote:
Mathijs wrote:
Jochem Maas wrote:
Mathijs wrote:
...
Thank you very much.
This seems to work :).
cool. heres's a couple of funcs that might help you to understand bitwise
operations better:
?php
/* whether there is only 1 single bit set or not */
function
Jochem Maas wrote:
Mathijs wrote:
Jochem Maas wrote:
Mathijs wrote:
...
Thank you very much.
This seems to work :).
cool. heres's a couple of funcs that might help you to understand bitwise
operations better:
?php
/* whether there is only 1 single bit set or not */
function
Jochem Maas wrote:
Mathijs wrote:
Jochem Maas wrote:
Mathijs wrote:
...
Thank you very much.
This seems to work :).
cool. heres's a couple of funcs that might help you to understand bitwise
operations better:
?php
/* whether there is only 1 single bit set or not */
function
Jochem Maas wrote:
Mathijs wrote:
Jochem Maas wrote:
Mathijs wrote:
...
Thank you very much.
This seems to work :).
cool. heres's a couple of funcs that might help you to understand bitwise
operations better:
?php
/* whether there is only 1 single bit set or not */
function
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED]
on Monday, September 26, 2005 9:18 AM said:
So i ask what this output?
$a = 4;
$b = 3;
echo $a $b;
echo $a $b;
You just spent 3-5 minutes writing an email and now almost 10 minutes
waiting for a reply to something that would have taken
On 9/26/05, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
From php manual:
$a $b Shift leftShift the bits of $a $b steps to the left (each step
means multiply by two)
$a $b Shift rightShift the bits of $a $b steps to the right (each step
means divide by two)
So i ask what this output?
$a
[EMAIL PROTECTED]
To: php-general@lists.php.net
Sent: Monday, September 26, 2005 1:28 PM
Subject: RE: [PHP] Bitwise operators
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED]
on Monday, September 26, 2005 9:18 AM said:
So i ask what this output?
$a = 4;
$b = 3;
echo $a $b;
echo $a $b
I tested; I don't want to waste peoples time. Rewriting the question:
this outputs:
c = 32
d = 0
The question is why?
First row is the bit's number and the second row is the bit's value:
#8 | #7 | #6 | #5 | #4 | #3 | #2 | #1
---
128 | 64 | 32 | 16 | 8 |
The second value is the number of spaces to shift, dint realize that.
Thanks for your time Chris.
Angelo
- Original Message -
From: Chris Boget [EMAIL PROTECTED]
To: [EMAIL PROTECTED]; php-general@lists.php.net
Sent: Monday, September 26, 2005 2:02 PM
Subject: Re: [PHP] Bitwise
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