dbmopen
Opis
resource dbmopen ( string filename, string flags )Opens the specified DBM database in the given mode.
Parametry
filenameThe full-path filename of the DBM file to be opened
flagsThe file open mode which is one of r, n, c or w, for read-only, new (implies read-write, and most likely will truncate an already-existing database of the same name), create (implies read-write, and will not truncate an already-existing database of the same name) and read-write respectively.
Zwracane wartości
Returns an identifier to be passed to the other DBM functions on success, or FALSE on failure.
Notatki
Notatka: If NDBM support is used, NDBM will actually create filename.dir and filename.pag files. GDBM only uses one file, as does the internal flat-file support, and Berkeley DB creates a filename.db file.
Note that PHP does its own file locking in addition to any file locking that may be done by the DBM library itself. PHP does not delete the .lck files it creates. It uses these files simply as fixed inodes on which to do the file locking. For more information on DBM files, see your Unix man pages, or obtain GNU's GDBM.
Notatka: Kiedy włączony jest tryb bezpieczny, PHP sprawdza, czy pliki lub katalogi na których chcesz operować mają takie same UID (owner) jak skrypt, który jest aktualnie wykonywany.