[PHP-DEV] PHP 4.0 Bug #7755 Updated: bitwise and misbehaving with & 0xffffff00 From: stas <email protected>
Date: 11/14/00

ID: 7755
Updated by: stas
Reported By: roland <email protected>
Status: Feedback
Bug Type: Math related
Assigned To:
Comments:

Please try latest CVS version (also available from
snaps.php.net) and report if it works better.

Previous Comments:
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[2000-11-10 22:29:04] roland <email protected>
I have the following snippet of code

$w = ip2long("192.168.2.35");
$x = $w & 0xffffff00;
$y = $w & (0xffffff << 8);
$z = ip2long("192.168.2.0");
printf ("w = %s<br>", dechex($w));
printf ("x = %s<br>", dechex($x));
printf ("y = %s<br>", dechex($y));
printf ("z = %s<br>", dechex($z));

which outputs this:

w = c0a80223
x = 80000000
y = c0a80200
z = c0a80200

I can't come up with any reason why $x should be set as it is....

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Full Bug description available at: http://bugs.php.net/?id=7755 

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