php - Call to undefined function oci_connect, php_oci8_11g.dll , windows 10, php5.6.24

Question

I have a simple php script:

<?php


            $DB = '//10.11.201.170:1521/XE';
            $DB_USER = 'BIOTPL';
            $DB_PASS = 'biotpl';
            $DB_CHAR = 'AL32UTF8';

            $conn = oci_connect($DB_USER, $DB_PASS, $DB, $DB_CHAR);
            if($conn)
            {
                echo "Successfully connected to Oracle.
";
                OCILogoff($c);
                //$statement = oci_parse($conn, 'select 1 from dual');
                //oci_execute($statement);
                //$row = oci_fetch_array($statement, OCI_ASSOC+OCI_RETURN_NULLS);
            }
            else
            {
                $err = OCIError();
                echo "Connection failed." . $err[text];
            }  
?>

When I run it (from a browser or from the command line), I get the error::

Call to undefined function oci_connect

I'm using php 5.6.24 . I have copied php_oci8.dll and php_oci8_11g.dll to /ext folder . I have

extension=php_oci8.dll 
extension=php_oci8_11g.dll  

in my php.ini I have installed instant client_11_2 - tried 32 bit version . I have ORACLE_HOME and TNS_ADMIN environment variables pointing at the instant client folder ( C:instantclient_11_2 ).

I have spent several hours over several days trying different things to no avail.

I have Installed Microsoft Visual C++ 2010 Runtime (x86). This is needed for the OCI8 extension. I have Installed Microsoft Visual C++ 2012 Runtime (x86). This is needed for PHP.

When I have tried the following command :

php --ri oci8

I have the following error :

PHP Warning:  PHP Startup: Unable to load dynamic library 'C:xamppphpextphp_oci8.dll' - %1 is not a valid Win32 application.
 in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library 'C:xamppphpextphp_oci8.dll' - %1 is not a valid Win32 application.
 in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library 'C:xamppphpextphp_oci8_11g.dll' - %1 is not a valid Win32 application.
 in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library 'C:xamppphpextphp_oci8_11g.dll' - %1 is not a valid Win32 application.
 in Unknown on line 0
Extension 'oci8' not present.

How can I remove the following error ?

Fatal error: Call to undefined function oci_connect() 

Answer 1

You are getting startup errors for the OCI8 extension indicating that you are using an unsupported dll for your php version. You need to use the correct one, which - for PHP 5.6.x - is one of these:

• http://windows.php.net/downloads/pecl/releases/oci8/2.0.8/

You need to take the one that matches your architecture (x86 or x64), compiler (vc 9, 11, 14) and thread-safe (ts) or non-thread-safe (nts) php version, e.g. if you are running a thread-safe PHP 5.6.24 compiled with vc11 on an x86, you'd use

php_oci8-2.0.8-5.6-ts-vc11-x86.zip
-------- ----- --- -- ---- --- ---
^        ^     ^   ^  ^    ^   ^
|        |     |   |  |    |   \_____ extension
|        |     |   |  |    \_________ architecture
|        |     |   |  \______________ compiler
|        |     |   \_________________ thread-safety mode
|        |     \_____________________ php version
|        \___________________________ extension version
\____________________________________ extension name

If there is no download matching your PHP, then it does not exist and you need to compile it yourself. More info at http://windows.php.net

On a side note: in addition to the above, you can only use one oci extension at a time. You got both (php_oci8.dll and php_oci8_11g.dll). Make sure to remove the one you don't need.