dbmopen

Opens a DBM database (PHP 4)
resource dbmopen ( string filename, string flags )

Opens the specified DBM database in the given mode.

Parameters

filename: The full-path filename of the DBM file to be opened
flags: 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.

Return Values

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

Notes

Note:

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.

See Also

dbmclose()

Want to use dbmopen() to open an NDBM DB under solaris? Want to have GDBM support as well? Tough; you can't. You *can* use dba_open(), but you need to jump through a couple of hoops first: First, you need to re-roll libgdbm so that DBM/NDBM compatiblity are removed. For GDBM-1.7.3, change this line in the Makefile: OBJS = $(DBM_OF) $(NDBM_OF) $(GDBM_OF) to this: OBJS = $(GDBM_OF) Once that's installed, re-run ./configure --with-gdbm=/<prefix> --with-ndbm --with-db=/<prefix> <other args>, where <prefix> is the directory which holds the include/ directory containing the associated header files. make, make install, adjust your scripts to use dba_open() with the ndbm handler. Voila!

dbmopen

Opens a DBM database (PHP 4)
resource dbmopen ( string filename, string flags )

Parameters

Return Values

Notes

Code Examples / Notes » dbmopen

Change Language

dbmopen

Opens a DBM database (PHP 4) resource dbmopen ( string filename, string flags )

Parameters

Return Values

Notes

Code Examples / Notes » dbmopen

Change Language

Opens a DBM database (PHP 4)
resource dbmopen ( string filename, string flags )