classes/db/mysqli.php

   1 <?php
   2 class Db_Mysqli implements IDb {
   3         private $link;
   4         private $last_error;
   5
   6         function connect($host, $user, $pass, $db, $port) {
   7                 if ($port)
   8                         $this->link = mysqli_connect($host, $user, $pass, $db, $port);
   9                 else
  10                         $this->link = mysqli_connect($host, $user, $pass, $db);
  11
  12                 if ($this->link) {
  13                         $this->init();
  14
  15                         return $this->link;
  16                 } else {
  17                         print("Unable to connect to database (as $user to $host, database $db): " . mysqli_connect_error());
  18                         exit(102);
  19                 }
  20         }
  21
  22         function escape_string($s, $strip_tags = true) {
  23                 if ($strip_tags) $s = strip_tags($s);
  24
  25                 return mysqli_real_escape_string($this->link, $s);
  26         }
  27
  28         function query($query, $die_on_error = true) {
  29                 $result = @mysqli_query($this->link, $query);
  30                 if (!$result) {
  31                         $this->last_error = @mysqli_error($this->link);
  32
  33                         @mysqli_query($this->link, "ROLLBACK");
  34                         user_error("Query $query failed: " . ($this->link ? $this->last_error : "No connection"),
  35                                 $die_on_error ? E_USER_ERROR : E_USER_WARNING);
  36                 }
  37
  38                 return $result;
  39         }
  40
  41         function fetch_assoc($result) {
  42                 return mysqli_fetch_assoc($result);
  43         }
  44
  45
  46         function num_rows($result) {
  47                 return mysqli_num_rows($result);
  48         }
  49
  50         function fetch_result($result, $row, $param) {
  51                 if (mysqli_data_seek($result, $row)) {
  52                         $line = mysqli_fetch_assoc($result);
  53                         return $line[$param];
  54                 } else {
  55                         return false;
  56                 }
  57         }
  58
  59         function close() {
  60                 return mysqli_close($this->link);
  61         }
  62
  63         function affected_rows($result) {
  64                 return mysqli_affected_rows($this->link);
  65         }
  66
  67         function last_error() {
  68                 return mysqli_error();
  69         }
  70
  71         function last_query_error() {
  72                 return $this->last_error;
  73         }
  74
  75         function init() {
  76                 $this->query("SET time_zone = '+0:0'");
  77
  78                 if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
  79                         mysqli_set_charset($this->link, MYSQL_CHARSET);
  80                 }
  81
  82                 return true;
  83         }
  84
  85 }