   #PHP Manual DBM Functions [deprecated] dbmnextkey dbmreplace

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                                    dbmopen

   (PHP 3, PHP 4 )
   dbmopen -- Opens a DBM database

Description

   resource dbmopen ( string filename, string flags)

   The first argument is the full-path filename of the DBM file to be
   opened and the second is the 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.

   Returns an identifier to be passed to the other DBM functions on
   success, or FALSE on failure.

   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.

     Note: When safe mode is enabled, PHP checks whether the files or
     directories you are about to operate on have the same UID (owner)
     as the script that is being executed.
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