Changes the virtual current directory where relation files will be looked
for by dbplus_open().
Parameters
- newdir
The new directory for relation files. You can omit this parameter to
query the current working directory.
Return Values
Returns the absolute path of the current directory.
Notes
Warning: This function is
EXPERIMENTAL. The behaviour of this function, the
name of this function, and anything else documented about this
function may change without notice in a future release of PHP.
Use this function at your own risk.