What is the significance of the error message "Unknown(): unable to load dynamic library './extensions/php_oci8.dll' - The specified module could not be found" in PHP?

The error message "Unknown(): unable to load dynamic library './extensions/php_oci8.dll' - The specified module could not be found" indicates that PHP is unable to load the OCI8 extension because the required DLL file is missing or cannot be located. To solve this issue, you need to make sure that the php_oci8.dll file is present in the specified directory or update the PHP configuration to point to the correct location of the OCI8 extension.

// Modify the php.ini file to specify the correct path to the php_oci8.dll extension
extension=php_oci8.dll