can not load oci8 -> Fatal error: Call to undefined function oci_connect()

Question

I want to connect to my oracle database, but i have a problem with function oci_connect. i have tried to uncomment this:

extension=php_oci8.dll 

Answer 1

In php.ini ensure that you enable the correct OCI extension (11g), like this:

;extension=php_oci8.dll      ; Use with Oracle 10gR2 Instant Client
extension=php_oci8_11g.dll  ; Use with Oracle 11gR2 Instant Client

As long as you've got Oracle 11gR2 or greater client libraries correctly installed you should now be able to run:

C:\>php --ri oci8

And get the result:

oci8

OCI8 Support => enabled
Version => 1.4.10
Revision => $Id: b0984d94e17f7c099470cd0a9404259f2a59da04 $
Active Persistent Connections => 0
Active Connections => 0
Oracle Run-time Client Library Version => 11.2.0.3.0
Oracle Instant Client Version => 11.2
Temporary Lob support => enabled
Collections support => enabled

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

To check your Oracle client is installed correctly (i.e., in your environment PATH variable) you can run:

C:\>where oci*

You should get a result like this:

C:\instantclient_11_2\oci.dll
C:\instantclient_11_2\oci.sym
C:\instantclient_11_2\ocijdbc11.dll
C:\instantclient_11_2\ocijdbc11.sym
C:\instantclient_11_2\ociw32.dll
C:\instantclient_11_2\ociw32.sym