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<?
/*
* These functions build the foundation for accessing the database:
* it is a general database abstraction layer suitable for several
* databases. Currently, the only supported database is MySQL but
* it should be straightforward to port it to any other database:
* just adjust the handlers to your needs.
*/
function db_connect() {
global $db_host, $db_name, $db_pass, $db_name;
mysql_pconnect($db_host, $db_name, $db_pass) or die(mysql_Error());
mysql_select_db($db_name) or die ("Unable to select database");
// NOTE: we are using a persistent connection!
}
function db_query($query, $debug = false) {
// perform query:
$qid = mysql_query($query);
// debug output (if required):
if ($debug) print "<PRE>query: ". htmlspecialchars($query) ."<BR>error message: ". mysql_error() ."</PRE>";
if (!$qid) watchdog("error", "database: ". mysql_error() ."<BR>query: ". htmlspecialchars($query) ."");
// return result from query:
return $qid;
}
function db_fetch_object($qid) {
if ($qid) return mysql_fetch_object($qid);
}
function db_num_rows($qid) {
if ($qid) return mysql_num_rows($qid);
}
function db_fetch_row($qid) {
if ($qid) return mysql_fetch_row($qid);
}
function db_fetch_array($qid) {
if ($qid) return mysql_fetch_array($qid);
}
function db_result($qid, $field) {
if ($qid) return mysql_result($qid, $field);
}
#
# Automatically connect to database:
#
db_connect();
?>
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