#25811 [Opn->Bgs]: version_compare fails on some versions
| From: | sniper@php.net | Date: | Mon, 13 Oct 2003 06:58:31 +0000 |
| Subject: | #25811 [Opn->Bgs]: version_compare fails on some versions | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-48897@lists.php.net to get a copy of this message | ||
ID: 25811
Updated by: sniper@php.net
Reported By: pmateescu at novosadhayes dot com
-Status: Open
+Status: Bogus
Bug Type: PHP options/info functions
Operating System: Windows XP
PHP Version: 4.3.2
New Comment:
RTFM: version_compare -- Compares two "PHP-standardized" version
number strings.
Notice the "PHP-standardized" there.
There is no bug here, 0.1 > 0.1x where x == a-z
Previous Comments:
------------------------------------------------------------------------
[2003-10-09 16:08:39] pmateescu at novosadhayes dot com
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 this bug report at http://bugs.php.net/?id=25811&edit=1