XX. DBM Functions

These functions allow you to store records stored in a dbm-style database. This type of database (supported by the Berkeley DB, GDBM, and some system libraries, as well as a built-in flatfile library) stores key/value pairs (as opposed to the full-blown records supported by relational databases).

Example 1. DBM example $dbm = dbmopen ("lastseen", "w"); if (dbmexists ($dbm, $userid)) { $last_seen = dbmfetch ($dbm, $userid); } else { dbminsert ($dbm, $userid, time()); } do_stuff(); dbmreplace ($dbm, $userid, time()); dbmclose ($dbm);

Table of Contents

dbmopen -- Opens a DBM database

dbmclose -- Closes a dbm database

dbmexists -- Tells if a value exists for a key in a DBM database

dbmfetch -- Fetches a value for a key from a DBM database

dbminsert -- Inserts a value for a key in a DBM database

dbmreplace -- Replaces the value for a key in a DBM database

dbmdelete -- Deletes the value for a key from a DBM database

dbmfirstkey -- Retrieves the first key from a DBM database

dbmnextkey -- Retrieves the next key from a DBM database

dblist -- Describes the DBM-compatible library being used