(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)
OCILob::flush — Flushes/writes buffer of the LOB to the server
flag
       By default, resources are not freed, but using flag 
       OCI_LOB_BUFFER_FREE you can do it explicitly.
       Be sure you know what you're doing - next read/write operation to the
       same part of LOB will involve a round-trip to the server and initialize
       new buffer resources. It is recommended to use 
       OCI_LOB_BUFFER_FREE flag only when you are not
       going to work with the LOB anymore.
      
| 版本 | 说明 | 
|---|---|
| 8.0.0, PECL OCI8 3.0.0 | The OCI-Lob class was renamed to OCILob to align with PHP naming standards. | 
