17,7 → 17,100 |
* limitations under the License. |
*/ |
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// Please reply this code with your actual implementation |
// Please replace this code with your actual implementation |
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mysql_connect('localhost', 'root', ''); |
mysql_select_db('logviewer'); |
db_connect('localhost', 'root', ''); |
db_select_db('logviewer'); |
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# --- |
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// Liefert die Anzahl der Zeilen im Ergebnis |
function db_num_rows($result) { |
if (!$result) { |
$err = db_error(); |
throw new Exception("Called db_num_rows() with an erroneous argument.".($err == '' ? '' : " Possible cause: $err")); |
} |
return $result->num_rows; |
} |
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// Liefert eine Ergebniszeile als Objekt |
function db_fetch_object($result, $class_name="stdClass", $params=null) { |
if (!$result) { |
$err = db_error(); |
throw new Exception("Called db_fetch_object() with an erroneous argument.".($err == '' ? '' : " Possible cause: $err")); |
} |
if ($params) { |
return $result->fetch_object($class_name, $params); |
} else { |
return $result->fetch_object($class_name); |
} |
} |
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// Öffnet eine Verbindung zu einem MySQL-Server |
function db_connect($server=null, $username=null, $password=null, $new_link=false, $client_flags=0) { |
global $vts_mysqli; |
$ary = explode(':', $server); |
$host = $ary[0]; |
$ini_port = ini_get("mysqli.default_port"); |
$port = isset($ary[1]) ? (int)$ary[1] : ($ini_port ? (int)$ini_port : 3306); |
if (is_null($server)) $port = ini_get("mysqli.default_host"); |
if (is_null($username)) $port = ini_get("mysqli.default_user"); |
if (is_null($password)) $port = ini_get("mysqli.default_password"); |
$vts_mysqli = new mysqli($host, $username, $password, /*dbname*/'', $port, ini_get("mysqli.default_socket")); |
return (empty($vts_mysqli->connect_error) && ($vts_mysqli->connect_errno == 0)) ? $vts_mysqli : false; |
} |
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// Schließt eine Verbindung zu MySQL |
function db_close($link_identifier=NULL) { |
global $vts_mysqli; |
$li = is_null($link_identifier) ? $vts_mysqli : $link_identifier; |
if (is_null($li)) throw new Exception("Cannot execute db_close(). No valid connection to server."); |
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return $li->close(); |
} |
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// Liefert den Fehlertext der zuvor ausgeführten MySQL Operation |
function db_error($link_identifier=NULL) { |
global $vts_mysqli; |
$li = is_null($link_identifier) ? $vts_mysqli : $link_identifier; |
if (is_null($li)) throw new Exception("Cannot execute db_error(). No valid connection to server."); |
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return !empty($li->connect_error) ? $li->connect_error : $li->error; |
} |
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// Maskiert spezielle Zeichen innerhalb eines Strings für die Verwendung in einer SQL-Anweisung |
function db_real_escape_string($unescaped_string, $link_identifier=NULL) { |
global $vts_mysqli; |
$li = is_null($link_identifier) ? $vts_mysqli : $link_identifier; |
if (is_null($li)) throw new Exception("Cannot execute db_real_escape_string(). No valid connection to server."); |
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return $li->escape_string($unescaped_string); |
} |
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// Sendet eine Anfrage an MySQL |
function db_query($query, $link_identifier=NULL) { |
global $vts_mysqli; |
$li = is_null($link_identifier) ? $vts_mysqli : $link_identifier; |
if (is_null($li)) throw new Exception("Cannot execute db_query(). No valid connection to server."); |
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return $li->query($query, $resultmode=MYSQLI_STORE_RESULT); |
} |
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// Auswahl einer MySQL Datenbank |
function db_select_db($database_name, $link_identifier=NULL) { |
global $vts_mysqli; |
$li = is_null($link_identifier) ? $vts_mysqli : $link_identifier; |
if (is_null($li)) throw new Exception("Cannot execute db_select_db(). No valid connection to server."); |
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return $li->select_db($database_name); |
} |
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// Liefert die ID, die in der vorherigen Abfrage erzeugt wurde |
function db_insert_id($link_identifier=NULL) { |
global $vts_mysqli; |
$li = is_null($link_identifier) ? $vts_mysqli : $link_identifier; |
if (is_null($li)) throw new Exception("Cannot execute db_insert_id(). No valid connection to server."); |
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return $li->insert_id; |
} |
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