#46556 [NEW]: There is no good method to escape a string for use in a (mySQL) LIKE clause
From: taco at procurios dot nl
Operating system: linux
PHP version: 5.2.6
PHP Bug Type: PDO related
Bug description: There is no good method to escape a string for use in a (mySQL) LIKE clause
Description:
------------
There is no good method to escape a string for use in a (mySQL) LIKE
clause. In a query like "SELECT foo FROM bar WHERE baz
LIKE '%" .
$qux . "%'" the value of $qux should be escaped for both the query itself
(like PDO::quote() does) as the LIKE clause (i.e. escaping % and _
characters.
Using PDO the only way to escape a variable is using either
PDOStatement::bindParam() or PDO::quote(). The first is not suitable for
two reasons:
1. Not every query is a prepared statement
2. There is no way to escape % and _ (escaping them first will result in
the \ being escaped: \% becomes \\%)
The latter is not suitable because it will add quotes to the string, so
you'll have to get rid of the quotes, escape % and _ and add the result to
the query.
--
Edit bug report at http://bugs.php.net/?id=46556&edit=1
--
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=46556&r=trysnapshot52
Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=46556&r=trysnapshot53
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=46556&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=46556&r=fixedcvs
Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=46556&r=needdocs
Fixed in release: http://bugs.php.net/fix.php?id=46556&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=46556&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=46556&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=46556&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=46556&r=support
Expected behavior: http://bugs.php.net/fix.php?id=46556&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=46556&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=46556&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=46556&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=46556&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=46556&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=46556&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=46556&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=46556&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=46556&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=46556&r=mysqlcfg
Thread (6 messages)
- taco at procurios dot nl