From:
Operating system: Ubuntu
PHP version: 5.3.9
Package: Regexps related
Bug Type: Bug
Bug description:preg_match + operator fails with string exceeding length 18
Description:
------------
I'm trying to validate email addresses via regular expression. My regular
expression fails if the first domain portion is longer than 18 characters.
Overall string length does not seem relevant. Decreasing the length of the
user portion or TLD does not make a 19+ character domain portion work.
Test script:
---------------
function is_email($str){
if(preg_match("/^[_a-z0-9-]+(.[_a-z0-9-]+)*@[a-z0-9-]+(.[a-z0-9-]+)*(.[a-z]{2,4})$/i",
$str))
return True;
return False;
}
var_dump(is_email("u...@123456789012345678.com"));
var_dump(is_email("u...@1234567890123456789.com"));
Expected result:
----------------
bool(true);
bool(true);
Actual result:
--------------
bool(true);
bool(false);
--
Edit bug report at https://bugs.php.net/bug.php?id=60903&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=60903&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=60903&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=60903&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=60903&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=60903&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=60903&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=60903&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=60903&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=60903&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=60903&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=60903&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=60903&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=60903&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=60903&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=60903&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=60903&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=60903&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=60903&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=60903&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=60903&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=60903&r=mysqlcfg
