This morning I ran into some problems, but I found out that I have x64 WampServer ... Which was not going to work correctly.
So, I reinstalled x86 WampServer and kept track of everything I could find on PHP.net ( http://php.net/manual/en/sqlsrv.requirements.php ). Since I saw this post when I was looking for my x64 solution, I thought I would come back and try to help you:
1) If you have PHP 5.4. # on Wamp, I put it TS, VC9
2) Find the correct "php.ini": mine is NOT in the folder "bin / php #", but in the folder "bin / apache #" (C: \ wamp \ bin \ apache \ apache2.22.22 \ Bin \ php.ini )
3) There are 2 versions of SQLSRV drivers, 2.0 and 3.0, make sure you have 3.0!
In appearance, we have exactly the same version of Wamp, so ... I'm sure you need to use "php_sqlsrv_54_ts.dll" and "php_pdo_sqlsrv_54_ts.dll".
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