Description

lob->flush() actually writes data to the server. 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. Tt is recommended to use OCI_LOB_BUFFER_FREE flag only when you are not going to work with the LOB anymore.

lob->flush() returns FALSE if buffering was not enabled or an error occurred.

Returns TRUE on success or FALSE on failure.