(PHP 4 >= 4.0.5, PHP 5 <= 5.0.5, PECL mnogosearch >= 1.0.0)
udm_alloc_agent — Allocate mnoGoSearch session
$dbaddr
   [, string $dbmode
  ] )Allocate a mnoGoSearch session.
dbaddr
     
       dbaddr - URL-style database description, with
       options (type, host, database name, port, user and password) to connect
       to SQL database. Do not matter for built-in text files support. Format for
       dbaddr:
       DBType:[//[DBUser[:DBPass]@]DBHost[:DBPort]]/DBName/.
       Currently supported DBType values are: mysql, pgsql, msql, solid, mssql, oracle,
       and ibase. Actually, it does not matter for native libraries support, but
       ODBC users should specify one of the supported values. If your database
       type is not supported, you may use unknown instead.
      
dbmode
     
       dbmode - You may select the SQL database mode of
       words storage. Possible values of dbmode are:
       single, multi, crc,
       or crc-multi. When single is
       specified, all words are stored in the same table. If multi
        is selected, words will be located in different tables depending
       of their lengths. "multi" mode is usually faster, but requires more tables
       in the database. If "crc" mode is selected, mnoGoSearch will store 32 bit
       integer word IDs calculated by CRC32 algorithm instead of words. This mode
       requires less disk space and it is faster comparing with "single" and
       "multi" modes. crc-multi uses the same storage structure
       with the "crc" mode, but also stores words in different tables depending on
       words lengths like in "multi" mode.
      
Note:
dbaddranddbmodemust match those used during indexing.
   Returns a mnogosearch agent identifier on success, FALSE on failure. This
   function creates a session with database parameters.
  
Note:
In fact this function does not open a connection to the database and thus does not check the entered login and password. Establishing a connection to the database and login/password verification is done by udm_find().