How can the Instant Client for Oracle version 10 be utilized to enable PHP to interact with Oracle databases?

To enable PHP to interact with Oracle databases using Instant Client for Oracle version 10, you need to ensure that the necessary Oracle extensions are installed and configured in PHP. This includes enabling the `oci8` extension in the PHP configuration file and setting the appropriate Oracle environment variables to point to the Instant Client libraries.

// Enable the OCI8 extension
extension=oci8

// Set Oracle environment variables
putenv('ORACLE_HOME=/path/to/instantclient_10_2');
putenv('LD_LIBRARY_PATH=/path/to/instantclient_10_2');