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