dba_fetch(3) [php man page]

DBA_FETCH(3)								 1							      DBA_FETCH(3)

dba_fetch - Fetch data specified by key

SYNOPSIS

       string dba_fetch (string  $key, resource  $handle)

DESCRIPTION

       string dba_fetch (string  $key, int  $skip, resource  $handle)

       dba_fetch(3) fetches the data specified by $key from the database specified with $handle.

PARAMETERS

	      o $key
		- The key the data is specified by.

	      Note

		      When  working  with  inifiles this function accepts arrays as keys where index 0 is the group and index 1 is the value name.
		     See: dba_key_split(3).

	      o $skip
		- The number of key-value pairs to ignore when using cdb databases. This value is ignored for all other  databases  which  do  not
		support multiple keys with the same name.

	      o $handle
		- The database handler, returned by dba_open(3) or dba_popen(3).

RETURN VALUES

	Returns the associated string if the key/data pair is found, FALSE otherwise.

CHANGELOG

       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       | 4.3.0	|						    |
       |	|						    |
       |	|  The	$skip  parameter  is  available  to support |
       |	| cdb's capability of multiple keys having the same |
       |	| name. 					    |
       |	|						    |
       +--------+---------------------------------------------------+
SEE ALSO

       dba_exists(3), dba_delete(3), dba_insert(3), dba_replace(3), dba_key_split(3).

PHP Documentation Group 													      DBA_FETCH(3)

CDBW(3) 						   BSD Library Functions Manual 						   CDBW(3)

NAME

     cdbw_open, cdbw_put, cdbw_put_data, cdbw_put_key, cdbw_stable_seeder, cdbw_output, cdbw_close -- create constant databases

SYNOPSIS

     #include <archive_entry.h>

     struct cdbw *
     cdbw_open(void);

     int
     cdbw_put(struct cdbw *cdbw, const void *key, size_t keylen, const void *data, size_t datalen);

     int
     cdbw_put_data(struct cdbw *cdbw, const void *data, size_t datalen, uint32_t *index);

     int
     cdbw_put_key(struct cdbw *cdbw, const void *key, size_t keylen, uint32_t index);

     uint32_t
     cdbw_stable_seeder(void);

     int
     cdbw_output(struct cdbw *cdbw, int output, const char descr[16], uint32_t (*seedgen)(void));

     void
     cdbw_close(struct cdbw *cdbw);

DESCRIPTION

     The cdbw functions are used to create a constant databases for use with cdbr(3).  Details about the file format, including overhead and limi-
     tations, can be found in cdb(5).

     cdbw_open() prepares a new cdb writer.  The function returns a handle to pass to the other functions.

     cdbw_close() frees all resources associated with the handle.

     cdbw_put() adds the given (key,value) pair after checking for a duplicate key.  cdbw_put_data() adds the given value to the writer without
     adding a key reference.  The returned index can be used in subsequent calls to cdbw_put_key() to add one or more keys pointing to this value.
     cdbw_put_key() checks for duplicate keys and valid index arguments.  On success it adds the given key.

     cdbw_output() computes the database file and writes it to the given descriptor.  The function returns an error if the file cannot be written
     correctly.  The descr() parameter provides a human readable description of the database content.  The seedgen() parameter can be used to
     override the default PRNG.  The bitwise layout of the output depends on the chosen seed.  The function should return a different value for
     each invocation.  The cdbw_stable_seeder() can be used to create reproducible output.  It may be slower than the default.

SEE ALSO

     cdbr(3), cdb(5)

HISTORY

     Support for the cdb format first appeared in NetBSD 6.0.

AUTHORS

     The cdbr and cdbw functions have been written by Joerg Sonnenberger <joerg@NetBSD.org>.

BSD
								   June 3, 2012 							       BSD