Call to undefined function oci_connect, php_oci8_12c.dll, windows 8.1, php5.6.6

Question

I have a simple php script:

Answer 1

In addition to what was said to fix the problem, I would like to add the php CLI side of things, as some people need to run OCI-enabled applications in CLI mode. In my case, I had to copy an instance of oci.dll into the wamp/bin/php/php<version>/ folder for php --ri oci8 to show that oci8 was correctly loaded. That doesn't prove that other files were not needed to correctly run a full-fledged application (see my technical footnote). Including the path to the instantclient 12 distribution wouldn't do it.

Technical notes: My environment being: Windows 7 + WAMP3 (php 5.6.15, apache 2.4.17), I was, after a number of experiments, able to narrow down the minimal set of three files that needed to be copied to the bin directory (Apache's for non-cli apps) from the instantclient 12 distribution, to allow instantiate an Oracle adapter within Zend Framework, perform an SQL query and read the recordset.

This set is: oci.dll, oraociei12.dll and orans.dll.

In particular, copying just oci.dll wouldn't allow the application to work (unknow Exception raised)

Answer 2

Edit: Hmm. Trying this on Windows 8 appears to generate the same error as you specified. I'm currently investigating...

My mistake (I had enabled the wrong extension_dir line). It works in Win8 just as documented below.

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The following steps should be all you need to get OCI working with PHP (I've just verified this on a freshly installed Windows 2008 R2 Standard x64 virtual machine):

• Download and extract PHP (I used C:\php from php-5.6.7-nts-Win32-VC11-x86.zip).
• Download and extract InstantClient (I used C:\instantclient_12_1 from instantclient-basic-nt-12.1.0.2.0.zip).
• Add the above paths to the system path.
• Copy c:\php\php.ini-production to c:\php\php.ini.
• in php.ini:
  • enabled line extension_dir = "ext".
  • enabled line extension=php_oci8_12c.dll.
• Install Microsoft Visual C++ 2010 Runtime (x86). This is needed for the OCI8 extension.
• Install Microsoft Visual C++ 2012 Runtime (x86). This is needed for PHP.

At this point running php --ri oci8 in a command prompt shows me the following output:

C:\>php --ri oci8

oci8

OCI8 Support => enabled
OCI8 DTrace Support => disabled
OCI8 Version => 2.0.9
Revision => $Id: f5a3ee1083d1ffa6adb5143efda6eafa210b8414 $
Oracle Run-time Client Library Version => 12.1.0.2.0
Oracle Compile-time Instant Client Version => 12.1

Directive => Local Value => Master Value
oci8.max_persistent => -1 => -1
oci8.persistent_timeout => -1 => -1
oci8.ping_interval => 60 => 60
oci8.privileged_connect => Off => Off
oci8.statement_cache_size => 20 => 20
oci8.default_prefetch => 100 => 100
oci8.old_oci_close_semantics => Off => Off
oci8.connection_class => no value => no value
oci8.events => Off => Off

Statistics =>
Active Persistent Connections => 0
Active Connections => 0

And checking for the oci_connect function:

C:\>php -r "var_dump(function_exists('oci_connect'));"
bool(true)