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<?php
/**************************************************************************
* *
* 4images - A Web Based Image Gallery Management System *
* ---------------------------------------------------------------- *
* *
* File: db_mysql.php *
* Copyright: (C) 2002 Jan Sorgalla *
* Email: jan@4homepages.de *
* Web: http://www.4homepages.de *
* Scriptversion: 1.7.1 *
* *
* Never released without support from: Nicky (http://www.nicky.net) *
* *
**************************************************************************
* *
* Dieses Script ist KEINE Freeware. Bitte lesen Sie die Lizenz- *
* bedingungen (Lizenz.txt) für weitere Informationen. *
* --------------------------------------------------------------- *
* This script is NOT freeware! Please read the Copyright Notice *
* (Licence.txt) for further information. *
* *
*************************************************************************/
if (!defined('ROOT_PATH')) {
die("Security violation");
}
class Db {
var $no_error = 0;
var $connection;
var $query_id = 0;
var $query_count = 0;
var $query_time = 0;
var $query_array = array();
var $table_fields = array();
function Db($db_host, $db_user, $db_password = "", $db_name = "", $db_pconnect = 0) {
$connect_handle = ($db_pconnect) ? "mysql_pconnect" : "mysql_connect";
if (!$this->connection = $connect_handle($db_host, $db_user, $db_password)) {
$this->error("Could not connect to the database server ($db_host, $db_user).", 1);
}
if ($db_name != "") {
if (!@mysql_select_db($db_name)) {
@mysql_close($this->connection);
$this->error("Could not select database ($db_name).", 1);
}
}
return $this->connection;
}
function close() {
if ($this->connection) {
if ($this->query_id) {
@mysql_free_result($this->query_id);
}
return @mysql_close($this->connection);
}
else {
return false;
}
}
function query($query = "") {
unset($this->query_id);
if ($query != "") {
if ((defined("PRINT_QUERIES") && PRINT_QUERIES == 1) || (defined("PRINT_STATS") && PRINT_STATS == 1)) {
$startsqltime = explode(" ", microtime());
}
if (!$this->query_id = @mysql_query($query, $this->connection)) {
$this->error("<b>Bad SQL Query</b>: ".htmlentities($query)."<br /><b>".mysql_error()."</b>");
}
if ((defined("PRINT_QUERIES") && PRINT_QUERIES == 1) || (defined("PRINT_STATS") && PRINT_STATS == 1)) {
$endsqltime = explode(" ", microtime());
$totalsqltime = round($endsqltime[0]-$startsqltime[0]+$endsqltime[1]-$startsqltime[1],3);
$this->query_time += $totalsqltime;
$this->query_count++;
}
if (defined("PRINT_QUERIES") && PRINT_QUERIES == 1) {
$query_stats = htmlentities($query);
$query_stats .= "<br><b>Querytime:</b> ".$totalsqltime;
$this->query_array[] = $query_stats;
}
return $this->query_id;
}
}
function fetch_array($query_id = -1, $assoc = 0) {
if ($query_id != -1) {
$this->query_id = $query_id;
}
if ($this->query_id) {
return ($assoc) ? mysql_fetch_assoc($this->query_id) : mysql_fetch_array($this->query_id);
}
}
function free_result($query_id = -1) {
if ($query_id != -1) {
$this->query_id = $query_id;
}
return @mysql_free_result($this->query_id);
}
function query_firstrow($query = "") {
if ($query != "") {
$this->query($query);
}
$result = $this->fetch_array($this->query_id);
$this->free_result();
return $result;
}
function get_numrows($query_id = -1) {
if ($query_id != -1) {
$this->query_id = $query_id;
}
return mysql_num_rows($this->query_id);
}
function get_insert_id() {
return ($this->connection) ? @mysql_insert_id($this->connection) : 0;
}
function get_next_id($column = "", $table = "") {
if (!empty($column) && !empty($table)) {
$sql = "SELECT MAX($column) AS max_id
FROM $table";
$row = $this->query_firstrow($sql);
return (($row['max_id'] + 1) > 0) ? $row['max_id'] + 1 : 1;
}
else {
return NULL;
}
}
function get_numfields($query_id = -1) {
if ($query_id != -1) {
$this->query_id = $query_id;
}
return @mysql_num_fields($this->query_id);
}
function get_fieldname($query_id = -1, $offset) {
if ($query_id != -1) {
$this->query_id = $query_id;
}
return @mysql_field_name($this->query_id, $offset);
}
function get_fieldtype($query_id = -1, $offset) {
if ($query_id != -1) {
$this->query_id = $query_id;
}
return @mysql_field_type($this->query_id, $offset);
}
function affected_rows() {
return ($this->connection) ? @mysql_affected_rows($this->connection) : 0;
}
function is_empty($query = "") {
if ($query != "") {
$this->query($query);
}
return (!mysql_num_rows($this->query_id)) ? 1 : 0;
}
function not_empty($query = "") {
if ($query != "") {
$this->query($query);
}
return (!mysql_num_rows($this->query_id)) ? 0 : 1;
}
function get_table_fields($table) {
if (!empty($this->table_fields[$table])) {
return $this->table_fields[$table];
}
$this->table_fields[$table] = array();
$result = $this->query("SHOW FIELDS FROM $table");
while ($row = $this->fetch_array($result)) {
$this->table_fields[$table][$row['Field']] = $row['Type'];
}
return $this->table_fields[$table];
}
function error($errmsg, $halt = 0) {
if (!$this->no_error) {
echo "<br /><font color='#FF0000'><b>DB Error</b></font>: ".$errmsg."<br />";
if ($halt) {
exit;
}
}
}
} // end of class
?>
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