PHP Manual Prev Next XV. 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 Prev Home Next dbase_numrecords Up dbmopen

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