<?php class Db_Mysqli implements IDb { private $link; private $last_error; function connect($host, $user, $pass, $db, $port) { if ($port) $this->link = mysqli_connect($host, $user, $pass, $db, $port); else $this->link = mysqli_connect($host, $user, $pass, $db); if ($this->link) { $this->init(); return $this->link; } else { print("Unable to connect to database (as $user to $host, database $db): " . mysqli_connect_error()); exit(102); } } function escape_string($s, $strip_tags = true) { if ($strip_tags) $s = strip_tags($s); return mysqli_real_escape_string($this->link, $s); } function query($query, $die_on_error = true) { $result = @mysqli_query($this->link, $query); if (!$result) { $this->last_error = @mysqli_error($this->link); @mysqli_query($this->link, "ROLLBACK"); user_error("Query $query failed: " . ($this->link ? $this->last_error : "No connection"), $die_on_error ? E_USER_ERROR : E_USER_WARNING); } return $result; } function fetch_assoc($result) { return mysqli_fetch_assoc($result); } function num_rows($result) { return mysqli_num_rows($result); } function fetch_result($result, $row, $param) { if (mysqli_data_seek($result, $row)) { $line = mysqli_fetch_assoc($result); return $line[$param]; } else { return false; } } function close() { return mysqli_close($this->link); } function affected_rows($result) { return mysqli_affected_rows($this->link); } function last_error() { return mysqli_error($this->link); } function last_query_error() { return $this->last_error; } function init() { $this->query("SET time_zone = '+0:0'"); if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) { mysqli_set_charset($this->link, MYSQL_CHARSET); } return true; } }