   #PHP Manual Function Reference dbase_replace_record dblist

   PHP Manual
   Prev  Next
   ______________________________________________________________________

XIX. DBM Functions [deprecated]

Introduction

   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).

     Note: However, dbm support is deprecated and you are encouraged to
     use the Database (dbm-style) abstraction layer functions instead.

Requirements

   To use this functions you have to compile PHP with support for an
   underlying database. See the list of supported Databases.

Installation

   In order to use these functions, you must compile PHP with dbm support
   by using the --with-db option. In addition you must ensure support for
   an underlying database or you can use some system libraries.

Runtime Configuration

   This extension has no configuration directives defined in php.ini.

Resource Types

   The function dbmopen() returns an database identifier which is used by
   the other dbm-functions.

Predefined Constants

   This extension has no constants defined.

Examples

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

   Table of Contents
   dblist --  Describes the DBM-compatible library being used
   dbmclose -- Closes a dbm database
   dbmdelete --  Deletes the value for a key from 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
   dbmfirstkey --  Retrieves the first key from a DBM database
   dbminsert --  Inserts a value for a key in a DBM database
   dbmnextkey --  Retrieves the next key from a DBM database
   dbmopen -- Opens a DBM database
   dbmreplace --  Replaces the value for a key in a DBM database
   ______________________________________________________________________

   Prev                 Home   Next
   dbase_replace_record  Up  dblist
