dbplus_chdir
  Get/Set database virtual current directory
  
 
 
  Description
  
   string dbplus_chdir
    ([ string $newdir
  ] )
  
  
 
  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
  WarningThis function is
EXPERIMENTAL. The behaviour of this function, its name, and
surrounding documentation may change without notice in a future release of PHP.
This function should be used at your own risk.