From: pmateescu at novosadhayes dot com
Operating system: Windows XP
PHP version: 4.3.2
PHP Bug Type: PHP options/info functions
Bug description: version_compare fails on some versions
Description:
------------
version_compare seems to return invalid results in two cases:
0.1a vs 0.1 and 1.0.a vs 1.0. in both cases the value on the left should
be the newest version.
If the a (alpha) is confusing it, then it does the same for other letters
(e.g. M).
Reproduce code:
---------------
$test = array (
array('0.1', '0.1', 0),
array('0.1', '0.2', -1),
array('0.3', '0.2', 1),
array('0.1.0', '0.1', 1),
array('0.1a', '0.1', 1),
array('0.1m', '0.1', 1),
array('0.1z', '0.1', 1),
array('0.1a', '0.1b', -1),
array('0.1.a', '0.1', 1),
array('0.1.a', '0.1.b', -1),
array('0.1-pre2', '0.1-pre1', 1),
array('0.11', '0.2', 1),
array('0.11.1', '0.2.3', 1)
);
foreach($test as $vals) {
$ret = version_compare($vals[0], $vals[1]);
echo "$vals[0] vs $vals[1] should be $vals[2] and is $ret ...[". ($ret
=== $vals[2] ? 'PASSED' : 'FAILED') ."]\n";
}
Expected result:
----------------
all of them should return PASSED.
Actual result:
--------------
0.1 vs 0.1 should be 0 and is 0 ...[PASSED]
0.1 vs 0.2 should be -1 and is -1 ...[PASSED]
0.3 vs 0.2 should be 1 and is 1 ...[PASSED]
0.1.0 vs 0.1 should be 1 and is 1 ...[PASSED]
0.1a vs 0.1 should be 1 and is -1 ...[FAILED]
0.1m vs 0.1 should be 1 and is -1 ...[FAILED]
0.1z vs 0.1 should be 1 and is -1 ...[FAILED]
0.1a vs 0.1b should be -1 and is -1 ...[PASSED]
0.1.a vs 0.1 should be 1 and is -1 ...[FAILED]
0.1.a vs 0.1.b should be -1 and is -1 ...[PASSED]
0.1-pre2 vs 0.1-pre1 should be 1 and is 1 ...[PASSED]
0.11 vs 0.2 should be 1 and is 1 ...[PASSED]
0.11.1 vs 0.2.3 should be 1 and is 1 ...[PASSED]
--
Edit bug report at http://bugs.php.net/?id=25811&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=25811&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=25811&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=25811&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=25811&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=25811&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=25811&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=25811&r=support
Expected behavior: http://bugs.php.net/fix.php?id=25811&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=25811&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=25811&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=25811&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=25811&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=25811&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=25811&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=25811&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=25811&r=float
