From: joei at mail dot com
Operating system: Linux
PHP version: 4.3.8
PHP Bug Type: *Regular Expressions
Bug description: ereg problem when use '\-'
Description:
------------
I found ereg function in php 4.3.8 doesn't match some expression that I
think it must be matched.
Look at example..
ereg('[\=\-]', 'a-b') = match
ereg('[\-\=]', 'a-b') = unmatch
I think 2 expressions is the same. But result is difference.
Reproduce code:
---------------
<?
echo "ereg('[\=\-]', 'a-b') = " ;
if (ereg('[\=\-]', 'a-b'))
echo "match";
else
echo "unmatch";
echo "<br>";
echo "ereg('[\-\=]', 'a-b') = " ;
if (ereg('[\-\=]', 'a-b'))
echo "match";
else
echo "unmatch";
echo "<br>";
?>
Expected result:
----------------
ereg('[\=\-]', 'a-b') = match
ereg('[\-\=]', 'a-b') = match
Actual result:
--------------
ereg('[\=\-]', 'a-b') = match
ereg('[\-\=]', 'a-b') = unmatch
--
Edit bug report at http://bugs.php.net/?id=29245&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=29245&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=29245&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=29245&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=29245&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=29245&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=29245&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=29245&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=29245&r=support
Expected behavior: http://bugs.php.net/fix.php?id=29245&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=29245&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=29245&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=29245&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=29245&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=29245&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=29245&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=29245&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=29245&r=float
