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  1. <?php
  2.  
  3. $vts_mysqli = null;
  4.  
  5. # ---
  6.  
  7. $stam_cfg = array();
  8. $stam_cfg['db_host'] = null;
  9. $stam_cfg['db_user'] = null;
  10. $stam_cfg['db_pass'] = null;
  11. $stam_cfg['db_base'] = null;
  12.  
  13. require __DIR__ . '/config.inc.php';
  14.  
  15. $db_host = $stam_cfg['db_host'];
  16. $db_user = $stam_cfg['db_user'];
  17. $db_pass = $stam_cfg['db_pass'];
  18. $db_base = $stam_cfg['db_base'];
  19.  
  20. if (!db_connect($db_host, $db_user, $db_pass)) {
  21.         fwrite(STDERR, "MySQL connect error\n");
  22.         exit(2);
  23. }
  24.  
  25. if (!db_select_db($db_base)) {
  26.         fwrite(STDERR, "MySQL DB select error\n");
  27.         db_close();
  28.         exit(2);
  29. }
  30.  
  31. register_shutdown_function('db_close');
  32.  
  33. # ---
  34.  
  35. // Sendet eine Anfrage an MySQL
  36. function db_query($query, $link_identifier=NULL) {
  37.         global $vts_mysqli;
  38.         return (!is_null($link_identifier) ? $link_identifier : $vts_mysqli)->query($query, $resultmode=MYSQLI_STORE_RESULT);
  39. }
  40.  
  41. // Maskiert spezielle Zeichen innerhalb eines Strings für die Verwendung in einer SQL-Anweisung
  42. function db_real_escape_string($unescaped_string, $link_identifier=NULL) {
  43.         global $vts_mysqli;
  44.         return (!is_null($link_identifier) ? $link_identifier : $vts_mysqli)->escape_string($unescaped_string);
  45. }
  46.  
  47. // Öffnet eine Verbindung zu einem MySQL-Server
  48. function db_connect($server=null, $username=null, $password=null, $new_link=false, $client_flags=0) {
  49.         global $vts_mysqli;
  50.         $ary = explode(':', $server);
  51.         $host = $ary[0];
  52.         $ini_port = ini_get("mysqli.default_port");
  53.         $port = isset($ary[1]) ? (int)$ary[1] : ($ini_port ? (int)$ini_port : 3306);
  54.         if (is_null($server)) $server = ini_get("mysqli.default_host");
  55.         if (is_null($username)) $username = ini_get("mysqli.default_user");
  56.         if (is_null($password)) $password = ini_get("mysqli.default_password");
  57.         $vts_mysqli = new mysqli($host, $username, $password, /*dbname*/'', $port, ini_get("mysqli.default_socket"));
  58.         return (empty($vts_mysqli->connect_error) && ($vts_mysqli->connect_errno == 0)) ? $vts_mysqli : false;
  59. }
  60.  
  61. // Schließt eine Verbindung zu MySQL
  62. function db_close($link_identifier=NULL) {
  63.         global $vts_mysqli;
  64.         return (!is_null($link_identifier) ? $link_identifier : $vts_mysqli)->close();
  65. }
  66.  
  67. // Auswahl einer MySQL Datenbank
  68. function db_select_db($database_name, $link_identifier=NULL) {
  69.         global $vts_mysqli;
  70.         return (!is_null($link_identifier) ? $link_identifier : $vts_mysqli)->select_db($database_name);
  71. }
  72.  
  73. define('DB_ASSOC', MYSQLI_ASSOC);
  74. define('DB_NUM',   MYSQLI_NUM);
  75. define('DB_BOTH',  MYSQLI_BOTH);
  76. function db_fetch_array($result, $result_type=DB_BOTH) {
  77.         return $result->fetch_array($result_type);
  78. }
  79.  
  80. // Liefert die ID, die in der vorherigen Abfrage erzeugt wurde
  81. function db_insert_id($link_identifier=NULL) {
  82.         global $vts_mysqli;
  83.         return (!is_null($link_identifier) ? $link_identifier : $vts_mysqli)->insert_id;
  84. }
  85.  
  86. // Liefert die Anzahl betroffener Datensätze einer vorhergehenden MySQL Operation
  87. function db_affected_rows($link_identifier=NULL) {
  88.         global $vts_mysqli;
  89.         return (!is_null($link_identifier) ? $link_identifier : $vts_mysqli)->affected_rows;
  90. }
  91.  
  92. // Liefert die Anzahl der Zeilen im Ergebnis
  93. function db_num_rows($result) {
  94.         return $result->num_rows;
  95. }
  96.  
  97. // Liefert den Fehlertext der zuvor ausgeführten MySQL Operation
  98. function db_error($link_identifier=NULL) {
  99.         global $vts_mysqli;
  100.         $x = (!is_null($link_identifier) ? $link_identifier : $vts_mysqli);
  101.         return !empty($x->connect_error) ? $x->connect_error : $x->error;
  102. }
  103.  
  104.