[RESOLVED] [MySQL 5.1 & PHP] Prepared STMT with REGEX

[Ipsens]

This is SQL query stored in PHP's var:

$sql = 
'SELECT    t1.for
FROM       t1, t2
WHERE     t1.for = t2.for && t1.for
REGEXP    \'[^0-9]?[^0-9]\''; 

Question mark in a middle of regexp statement, is supposed to be a binding placeholder, for prepared statement!
So when I escape it like:

$sql = 
'SELECT    t1.for
FROM       t1, t2
WHERE     t1.for = t2.for && t1.for
REGEXP    \'[^0-9]\\\?[^0-9]\''; 

It just escaped special meaning in regexp itself and is now litteral symbol which is part of a pattern.
I want it to become(?) a binding placeholder inside of regexp pattern.

[Ipsens]

It doesn't matter anymore, as I've found a solution.
It is as follows:

$sql = 
'SELECT    t1.for
FROM       t1, t2
WHERE     t1.for = t2.for && t1.for
REGEXP    CONCAT(\'[^0-9]+\', ?, \'[^0-9]+\')'; 

And Voila!
Now ? placeholder works for this prepared select statement.