Let’s talk about the configuration process
1. Download oracle instantclient
Download address: http://www.oracle.com/technetwork/topics/winx64soft-089540.html
Download instantclient-basic-windows.x64-11.2.0.4.0
Decompression path: D:\Program Files (x86)\Oracle64Client\instantclient_11_2
*Note: Client required Corresponds to the database version.
2. Configure system environment variables
Add after the PATH environment variable: ;D:\Program Files (x86)\Oracle64Client\instantclient_11_2
3. Configure PHP to support OCI Extension
Modify the configuration file php.ini
Open the configuration as follows

##4. Restart the Apache service test
Use Probe function phpinfo() checks whether the extension is enabled. If the following figure appears, the extension is enabled

5. Test database connection
Write oracle in the root directory of the site .php, I am connecting to the Oralce database in the virtual machine CentOS
The code is as follows:
"; ocilogoff($conn); } ?>
Copy after login
Enter http://localhost/oracle.php
in the browser address bar If Connected Oracle Successd! is displayed, the database connection is successful.
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