91 lines
2.4 KiB
PHP
91 lines
2.4 KiB
PHP
<!DOCTYPE html>
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<?php
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/*
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* Copyright (C) 2018 Christian Brüggen
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* Stellt eine Verbindung zu einer DB bereit
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*
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* @author Christian Brüggen
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*/
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class DBClass extends stdClass
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{
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/**
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* Zeiger auf die DB
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* @var PDO
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*/
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private $pdo = null;
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/**
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* Das Abgrage-Statement
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* @var PDOStatement
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*/
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private $stmt = null;
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/**
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* Verbindet mit Server und DB
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* @param string $dbname Name der Datenbank
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* @param string $user Benutzername
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* @param string $passwort Passwort des Benutzers
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* @param string $host Adresse des Datenbankservers
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*/
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public function __construct($dbname, $user, $passwort, $host)
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{
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try {
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$this->pdo = new PDO('mysql:host=' . $host . ';dbname=' . $dbname, $user, $passwort);
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} catch (PDOException $e) {
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echo $e->getMessage();
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}
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}
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/**
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* Führt eine SQL-Anweisung ohne Rückgabe eines Datensatzes aus
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* @param string $querystring
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* @param array $params
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* @return boolean
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*/
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public function query($querystring, array $params = array())
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{
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try {
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$this->stmt = $this->pdo->prepare($querystring);
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return $this->stmt->execute($params);
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} catch (PDOException $ex) {
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$this->stmt = null;
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} catch (Exception $ex) {
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$this->stmt = null;
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}
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return false;
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}
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/**
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* Führt eine SQL-Anweisung mit Rückgabe eines Datensatzes aus
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* @param string $querystring
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* @param array $params
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* @return array
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*/
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public function select($querystring, array $params = array())
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{
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if ($this->query($querystring, $params)) {
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return $this->stmt->fetchAll();
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} else {
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return array();
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}
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}
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}
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