<?
class database {
// mysql link identifier
var $link_ident = NULL;
// debug mode
var $debug = true;
// query counter
var $query_count = 0;
var $last_id = NULL;
var $default_error_message = 'Sorry, a internal error occured. Please go back an try it again.<br/><br/><a href="javascript:history.back(-1)">Back</a>';
/*
** database
** database constructor
*/
function database(){
// parameter count:
if ($args == 4) {
/*
set login data:
host, username, password, database
*/
}
}
/*
** set_login
** set login data (host, username, password, database)
*/
function set_login(){
// parameter count:
if ($args >= 3) {
/*
set login data:
host, username, password, database
*/
}
}
/*
** set_database
**
*/
function set_database($database){
$this->login[3] = $database;
}
/*
** is_connected
**
*/
function is_connected(){
return ($this->link_ident !== NULL);
}
/*
** error
**
*/
function error($msg){
if ($this->debug){
print '<div style="border: 1px solid red; padding: 1em; font-family: Verdana;">';
print '<b>MySQL Database Error:</b><br/>';
print $msg;
print '<br/><br/><b>MySQL Error:</b> ' . $errno . ' ( ' . $error . ')<br/>\n';
print '</div>';
}
else {
print $this->default_error_message;
}
}
/*
** connect
** Connect to the database server.
*/
function connect(){
if ($this->is_connected()) {
// Connection is alread etablished
return true;
}
if (count($this->login) != 4
) { $this->error('Did not found the login settings.');
return false;
}
$this->link_ident = mysql_connect($this->login[0
], $this->login[1
], $this->login[2
]);
if (!$this->link_ident) {
$this->error('Could not connect to the database.');
return false;
}
$this->error('Could not select the database.');
return false;
}
return true;
}
/*
** get_query_cout
**
*/
function get_query_cout(){
return $this->query_count;
}
/*
** simple_escape
**
*/
function simple_escape($str) {
} else {
}
}
/*
** insert_array
**
*/
function insert_array($table, $data_array){
// go trough all keys:
while (list($key, $val) = each($data_array)){
// add key
$row_keys[] = "`$key`";
// prepare and add value
if ($val == 'NOW()'){ $val = 'NOW()'; }
else if (!is_numeric($val)) { $val = '"'.$this->simple_escape($val).'"'; }
$row_vals[] = $val;
}
// generate query string
$query_str = 'INSERT INTO ' . $table;
$query_str .= ' ('.implode(',', $row_keys).') '; $query_str .= 'VALUES ('.implode(',', $row_vals).');';
// exec. query:
return $this->query($query_str);
}
/*
** prepare_query
**
*/
function prepare_query(){
// parameter count:
if ($args >= 1) {
$sql = $args[0];
}
return '';
}
/*
** close
** Close the database connection.
*/
function close(){
if ($this->is_connected()) {
$this->link_ident = NULL;
return $r;
}
}
/*
** print_query
** Print query
*/
function print_query($query_string) {
print '<div style="border: 1px solid red; padding: 0em 1em; font-family: Verdana;"><pre>';
print '</pre></div>';
}
/*
** get_insert_id
**
*/
function get_insert_id(){
}
/*
** debug_query
**
*/
function debug_query($query_string) {
$r = $this->query($query_string);
print '<table border="1" cellpadding="4" cellspacing="0" width="90%">';
print '<tr style="background-color: #FDFAB6;"><td><b>SQL Query:</b><br/>';
print '</td></tr>';
print '</table><br/>';
print '<table border="1" cellpadding="4" cellspacing="0" width="90%">';
$first_row = $this->fetch_array($r);
if ($first_row){
print '<tr style="background-color: #FDFAB6; text-align: left;">';
for ($x=0; $x < count($keys); $x++){ print '<th>'.$keys[$x].'</th>';
}
print '</tr>';
$x = 0;
while ($row = $this->fetch_array($r)){
print '<tr style="background-color: '.(($x % 2) ? '#FFFFFF' : '#EEEEEE').';">';
while(list($name, $value) = each($row)){ print ($value != '') ?
'<td>'.htmlentities($value).'</td>' : '<td> </td>'; }
print "</tr>\n";
$x++;
}
print '</table>';
}
else {
print '<tr><td>No rows found!</td></tr>';
}
}
/*
** query
**
*/
function query($query_string) {
// Connect to the database if we are
// not already connected
$this->connect();
$query_string = trim($query_string); if (empty($query_string) or
$query_string == '') { return false;
}
// Check if we are connected to the database
if (!$this->is_connected()) {
$this->error('No database connection found.');
return false;
}
// Execute the query:
$q_id = @mysql_query($query_string, $this->link_ident); // Update query count
$this->query_count++;
// If a empty result is given
if (!$q_id) {
$this->error('The database returned a invalid result.');
return false;
}
return $q_id;
}
/*
** query_fetch
**
*/
function &query_fetch($query_string){
$query_handle = $this->query($query_string);
if ($this->num_rows($query_handle) == 0){
}
else {
return $this->fetch_array($query_handle);
}
}
/*
** query_single_result
**
*/
function query_single_result($query_string){
$query_handle = $this->query($query_string);
if ($this->num_rows($query_handle) == 0){
return '';
}
else {
$result = $this->fetch_array($query_handle, 'num');
return isset($result[0
]) ?
$result[0] : ''; }
}
/*
** count_rows
**
*/
function count_rows($query_string){
$query_handle = $this->query($query_string);
if (!$this->num_rows($query_handle)){
return 0;
}
else {
$row = $this->fetch_array($query_handle);
return isset($row[0
]) ?
$row[0
] : 0; }
}
/*
** num_rows
**
*/
function num_rows($r){
}
/*
** num_cols
**
*/
function num_cols($r){
}
/*
** table_size
** returns something like: 484.2 KB
*/
function table_size($table_name, $database=NULL) {
if ($database === NULL){
$database = isset($this->login[3
]) ?
$this->login[3] : ''; }
if ($database == ''){
$this->error('No database given.');
}
$this->connect();
$r = $this->query("SHOW TABLE STATUS FROM ".$database." LIKE '".$table_name."'", $this->link_ident);
$size = intval($this->result($r, 0, 'Index_length')) + intval($this->result($r, 0, 'Data_length'));
return $this->nice_date($size);
}
/*
** nice_date
** returns something like: 484.2 KB
*/
function nice_date($size){
$units = array(' B', ' KB', ' MB', ' GB', ' TB'); for ($i = 0; $size > 1024; $i++) { $size /= 1024; }
return round($size, 2
).$units[$i]; }
/*
** database_size
** returns something like: 484.2 KB
*/
function database_size($database) {
$this->connect();
if (!$tables) { return -1; }
$size = 0;
for ($i=0; $i < $table_count; $i++) {
$r = $this->query("SHOW TABLE STATUS FROM ".$database." LIKE '".$table_name."'", $this->link_ident);
$size += intval($this->result($r, 0, 'Index_length')) + intval($this->result($r, 0, 'Data_length')); }
return $this->nice_date($size);
}
/*
** affected_rows
**
*/
function &affected_rows(){
}
/*
** fetch_object
**
*/
function &fetch_object($handle) {
}
/*
** fetch_array
**
*/
function &fetch_array($handle, $type = 'assoc') {
if ($type == 'assoc'){ $result_type = MYSQL_ASSOC; }
else if ($type == 'num'){ $result_type = MYSQL_NUM; }
else if ($type == 'row'){ $result_type = MYSQL_ROW; }
else { $result_type = MYSQL_BOTH; }
//I hate this :)
return $return;
}
function &fetch_row($handle) {
return $return;
}
/*
** free
** Deletes the results and frees the memory
*/
function free($result){
}
// end of class
}
?>
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