Така знам, че става там със str_replace, но понеже кода е май на ООП написан и не разбирам нищо... ето го кода
т.е. chat.class.php
btw ето я системата за чат http://tutorialzine.com/2010/10/ajax-web-chat-php-mysql/
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т.е. chat.class.php
btw ето я системата за чат http://tutorialzine.com/2010/10/ajax-web-chat-php-mysql/
PHP:
<?php
/* The Chat class exploses public static methods, used by ajax.php */
class Chat{
public static function login($name,$email){
if(!$name || !$email){
throw new Exception('Попълни всички полета.');
}
if(!filter_input(INPUT_POST,'email',FILTER_VALIDATE_EMAIL)){
throw new Exception('Вашият e-mail не е валиден.');
}
// Preparing the gravatar hash:
$gravatar = md5(strtolower(trim($email)));
$user = new ChatUser(array(
'name' => $name,
'gravatar' => $gravatar
));
// The save method returns a MySQLi object
if($user->save()->affected_rows != 1){
throw new Exception('Това име е заето.');
}
$_SESSION['user'] = array(
'name' => $name,
'gravatar' => $gravatar
);
return array(
'status' => 1,
'name' => $name,
'gravatar' => Chat::gravatarFromHash($gravatar)
);
}
public static function checkLogged(){
$response = array('logged' => false);
if($_SESSION['user']['name']){
$response['logged'] = true;
$response['loggedAs'] = array(
'name' => $_SESSION['user']['name'],
'gravatar' => Chat::gravatarFromHash($_SESSION['user']['gravatar'])
);
}
return $response;
}
public static function logout(){
DB::query("DELETE FROM webchat_users WHERE name = '".DB::esc($_SESSION['user']['name'])."'");
$_SESSION = array();
unset($_SESSION);
return array('status' => 1);
}
public static function submitChat($chatText){
if(!$_SESSION['user']){
throw new Exception('Не си влязъл');
}
if(!$chatText){
throw new Exception('Не сте\' въвели съобщение.');
}
$chat = new ChatLine(array(
'author' => $_SESSION['user']['name'],
'gravatar' => $_SESSION['user']['gravatar'],
'text' => $chatText
));
// The save method returns a MySQLi object
$insertID = $chat->save()->insert_id;
return array(
'status' => 1,
'insertID' => $insertID
);
}
public static function getUsers(){
if($_SESSION['user']['name']){
$user = new ChatUser(array('name' => $_SESSION['user']['name']));
$user->update();
}
//tuka za delete
DB::query("DELETE FROM webchat_users WHERE last_activity < SUBTIME(NOW(),'0:0:30')");
$result = DB::query('SELECT * FROM webchat_users ORDER BY name ASC LIMIT 18');
$users = array();
while($user = $result->fetch_object()){
$user->gravatar = Chat::gravatarFromHash($user->gravatar,30);
$users[] = $user;
}
return array(
'users' => $users,
'total' => DB::query('SELECT COUNT(*) as cnt FROM webchat_users')->fetch_object()->cnt
);
}
public static function getChats($lastID){
$lastID = (int)$lastID;
$result = DB::query('SELECT * FROM webchat_lines WHERE id > '.$lastID.' ORDER BY id ASC');
$chats = array();
while($chat = $result->fetch_object()){
// Returning the GMT (UTC) time of the chat creation:
$chat->time = array(
'hours' => gmdate('H',strtotime($chat->ts)),
'minutes' => gmdate('i',strtotime($chat->ts))
);
$chat->gravatar = Chat::gravatarFromHash($chat->gravatar);
$chats[] = $chat;
}
return array('chats' => $chats);
}
public static function gravatarFromHash($hash, $size=23){
return 'http://www.gravatar.com/avatar/'.$hash.'?size='.$size.'&default='.
urlencode('http://www.gravatar.com/avatar/ad516503a11cd5ca435acc9bb6523536?size='.$size);
}
}
?>