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<p>Library Version 18.1.40</p>
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<p>
A PHP 4 extension for this release of Berkeley DB is
included in the distribution package. It can either either
link directly against the installed Berkeley DB library (which
is necessary for running in a non-Apache/mod_php4
environment), or against mod_db4, which provides additional
safety when running under Apache/mod_php4.
</p>
<p>
For installation instructions, see the
<code class="filename">INSTALL</code> file that resides in the
<code class="literal">lang/php_db4</code> directory in your
Berkeley DB distribution.
</p>
<p>
The PHP extension provides the following classes, which
mirror the standard Berkeley DB C++ API.
</p>
<pre class="programlisting">class Db4Env {
function Db4Env($flags = 0) {}
function close($flags = 0) {}
function dbremove($txn, $filename, $database = null, $flags = 0) {}
function dbrename($txn, $file, $database, $new_database,
$flags = 0) {}
function open($home, $flags = DB_CREATE | DB_INIT_LOCK |
DB_INIT_LOG | DB_INIT_MPOOL | DB_INIT_TXN,
$mode = 0666) {}
function remove($home, $flags = 0) {}
function add_data_dir($directory) {}
function txn_begin($parent_txn = null, $flags = 0) {}
function txn_checkpoint($kbytes, $minutes, $flags = 0) {}
}
class Db4 {
function Db4($dbenv = null) {} // create a new Db4 object using
// the optional DbEnv
function open($txn = null, $file = null, $database = null,
$flags = DB_CREATE, $mode = 0) {}
function close() {}
function del($key, $txn = null) {}
function get($key, $txn = null, $flags = 0) {}
function pget($key, &$pkey, $txn = null, $flags = 0) {}
function get_type() {} // returns the stringified
// database type name
function stat($txn = null, $flags = 0) {} // returns statistics as
// an as
function join($cursor_list, $flags = 0) {}
function sync() {}
function truncate($txn = null, $flags = 0) {}
function cursor($txn = null, flags = 0) {}
}
class Db4Txn {
function abort() {}
function commit() {}
function discard() {}
function id() {}
function set_timeout($timeout, $flags = 0) {}
}
class Db4Cursor {
function close() {}
function count() {}
function del() {}
function dup($flags = 0) {}
function get($key, $flags = 0) {}
function pget($key, &$primary_key, $flags = 0) {}
function put($key, $data, $flags = 0) {}
}</pre>
<p>
The PHP extension attempts to be "smart" for you by:
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Auto-committing operations on transactional
databases if no explicit Db4Txn object is
specified.
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<li>
Performing reference and dependency checking to
insure that all resources are closed in the correct
order.
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<li>
Supplying default values for flags.
</li>
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