PHP 5.2 (win.server) can't connect to Oracle 12c db - oracle12c

Question

I have difficult question.
On win.server i have PHP 5.2 version. I must connect on Oracle 12c db. Procedure that i do is:
download oracle client 12.2
enable php_oci8.dll
insert PATH to
C:\Windows\SysWOW64\instantclient_12_2
restart server
also i tried to insert php_oci8_12c.dll extension and put oci8_12c.dll file in php/ext directory.
When i true to run .bat file i see errors:
"Missing MSVCR120.ddl" - i resolve this with put this file in /php/ext dir.
"The procedure entry point gc_remove_zval_from_buffer could not be located in the dynamic link library php5ts.dll"
On my local pc i have php 5.6 and they work with 12c oracle.
On internet see that 5.2 version can work with 12c.
What is the potencial problem? What I can try?

Answer 1

OCI 12c requires PHP 5.5, see http://www.oracle.com/technetwork/articles/dsl/technote-php-instant-12c-2088811.html
You can try tho to install the Visual C++ Redistributable Package.
Because the MSVCR120.dll error can't be fixed by putting it in the ext folder.
When you use Apache and/or Console client, make sure you have enabled in both php.ini files, because they are different configurations.
You can also try the PECL OCI package from https://pecl.php.net/package/oci8
Make sure to pick the correct version, the most recent only works for PHP 7.

Answer 2

I finally managed to install it, with some miracle because i do like this much time...
Steps what i do is:
download instaclient12.2 (32bit)
install visual c++ redistributable 2013
put instaclient_12_2 in C:\Windows\SysWOW64\
insert PATH C:\Windows\SysWOW64\instantclient_12_2
download oci8_2.0.12 X64 TS and put php_oci8_12c.dll in php/ext
put oci.dll (from instantclient_12_2 (32bit)) in C:\Apache24\bin, C:\php\ext and C:\php
enable extension php_oci8_12c.dll ini php.ini
On servers was Windows server 2008 R1 and PHP 5.6.2 TS