PHP has got the OCI8 extension, which provides Oracle connectivity to PHP application, and OCI8 uses Oracle Instant Client Package to get Oracle specific functions.

MySQL does not support renaming a database (and prefers not to be done in the supported versions) as mentioned here. However, use of this statement could result in loss of database contents, which is why it was removed. Do not use RENAME DATABASE in earlier versions in which it is present. But there might be [...]