From: webdev at concraption dot com
Operating system: Windows 2000/XP
PHP version: 5.0.5
PHP Bug Type: *Network Functions
Bug description: gethostbynamel() returns wrong type
Description:
------------
The online documentation for gethostbynamel() states that if the lookup
fails, it will return FALSE. The Win32 binary of PHP 5.0.5 returns what
appears to be an empty string, rather than FALSE on the case of failed
lookup. If this is an error in the documentation, I apologize for your
time.
I was able to devise a workaround using is_array() in an IF block, but out
of curiousity I added die(">".$hosts."<"); and PHP returned ><, which leads
me to believe that when the lookup fails, $hosts is an empty string rather
than FALSE.
Reproduce code:
---------------
<?
$hosts = gethostbynamel($hostname);
if ($hosts != FALSE) {
echo $hostname." is tied to the following IPs:<br><br>";
foreach ($hosts as $ip) {
echo "IP: ".$ip."<br>";
}
} else {
echo $hostname." is not tied to any IP.";
}
Expected result:
----------------
$hostname is tied to the following IPs:
IP: first_ip
IP: second_ip
etc...
OR
$hostname is not tied to any IP.
Actual result:
--------------
Warning: Invalid argument supplied for foreach() in
C:\Server\sites\apps\iptools.php on line 12
--
Edit bug report at http://bugs.php.net/?id=34553&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=34553&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=34553&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=34553&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=34553&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=34553&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=34553&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=34553&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=34553&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=34553&r=support
Expected behavior: http://bugs.php.net/fix.php?id=34553&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=34553&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=34553&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=34553&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=34553&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=34553&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=34553&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=34553&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=34553&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=34553&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=34553&r=mysqlcfg
