From: wicked at ngs dot ru
Operating system: Win XP + SP1
PHP version: 4.3.8
PHP Bug Type: Scripting Engine problem
Bug description: PHP gives indulgences when a developer uses wrong escaping
Description:
------------
I expect that
print "\a";
will fail because there is no entity like \a among
\n, \r, \t, \\, \$, \", \[0-7]{1,3} and \x[0-9A-Fa-f]{1,2}.
It is like that browsers like IE shows "&abc" as there were written
"&abc".
It's harmful.
More than that, I and some other PHP experts have been puzzleing why this
string works:
$tokens = preg_split('/(?<!\\\)[&?!]/', $query, -1,
PREG_SPLIT_DELIM_CAPTURE);
Everybody expected that ) was escaped!
Reproduce code:
---------------
$tokens = preg_split('/(?<!\\\)[&?!]/', $query, -1,
PREG_SPLIT_DELIM_CAPTURE);
Expected result:
----------------
PHP fails because of brackets mismatch (one of brackets is escaped).
Actual result:
--------------
It works :(
--
Edit bug report at http://bugs.php.net/?id=31357&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=31357&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=31357&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=31357&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=31357&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=31357&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=31357&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=31357&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=31357&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=31357&r=support
Expected behavior: http://bugs.php.net/fix.php?id=31357&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=31357&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=31357&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=31357&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=31357&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=31357&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=31357&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=31357&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=31357&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=31357&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=31357&r=mysqlcfg
