Funcion no funciona

[joska1993]

si, ya lo consegui, pero ahora ocurre otro problema, y es que no me deja desplazar la barra lateral de la pagina la barra de scroll, que puede ser?

Código PHP:

<?php
 
define ('DBPATH', '*********');
define ('DBUSER', '******');
define ('DBPASS', '*****');
define ('DBNAME', '******');
 
session_start();
require_once 'functions.inc.php';
$_SESSION['username'] = $user->userData['usuario'];
 
global $dbh;
$dbh = mysql_connect(DBPATH,DBUSER,DBPASS);
mysql_selectdb(DBNAME,$dbh);
 
if ($_GET['action'] == "chatheartbeat") { chatHeartbeat(); } 
if ($_GET['action'] == "sendchat") { sendChat(); } 
if ($_GET['action'] == "closechat") { closeChat(); } 
if ($_GET['action'] == "startchatsession") { startChatSession(); } 
 
if (!isset($_SESSION['chatHistory'])) {
    $_SESSION['chatHistory'] = array(); 
}
 
if (!isset($_SESSION['openChatBoxes'])) {
    $_SESSION['openChatBoxes'] = array();   
}
 
function chatHeartbeat() {
    
    $sql = "select * from chat where (chat.to = '".mysql_real_escape_string($_SESSION['username'])."' AND recd = 0) order by id ASC";
    $query = mysql_query($sql);
    $items = '';
 
    $chatBoxes = array();
 
    while ($chat = mysql_fetch_array($query)) {
 
        if (!isset($_SESSION['openChatBoxes'][$chat['from']]) && isset($_SESSION['chatHistory'][$chat['from']])) {
            $items = $_SESSION['chatHistory'][$chat['from']];
        }
 
        $chat['message'] = sanitize($chat['message']);
 
        $items .= <<<EOD
                       {
            "s": "0",
            "f": "{$chat['from']}",
            "m": "{$chat['message']}"
       },
EOD;
 
    if (!isset($_SESSION['chatHistory'][$chat['from']])) {
        $_SESSION['chatHistory'][$chat['from']] = '';
    }
 
    $_SESSION['chatHistory'][$chat['from']] .= <<<EOD
                           {
            "s": "0",
            "f": "{$chat['from']}",
            "m": "{$chat['message']}"
       },
EOD;
        
        unset($_SESSION['tsChatBoxes'][$chat['from']]);
        $_SESSION['openChatBoxes'][$chat['from']] = $chat['sent'];
    }
 
    if (!empty($_SESSION['openChatBoxes'])) {
    foreach ($_SESSION['openChatBoxes'] as $chatbox => $time) {
        if (!isset($_SESSION['tsChatBoxes'][$chatbox])) {
            $now = time()-strtotime($time);
            $time = date('g:iA M dS', strtotime($time));
            $time222 = date('H:i:s', strtotime($time));
 
            $message = "Enviado a las ".$time22."";
            if ($now > 180) {
                $items .= <<<EOD
{
"s": "2",
"f": "$chatbox",
"m": "{$message}"
},
EOD;
 
    if (!isset($_SESSION['chatHistory'][$chatbox])) {
        $_SESSION['chatHistory'][$chatbox] = '';
    }
 
    $_SESSION['chatHistory'][$chatbox] .= <<<EOD
        {
"s": "2",
"f": "$chatbox",
"m": "{$message}"
},
EOD;
            $_SESSION['tsChatBoxes'][$chatbox] = 1;
        }
        }
    }
}
 
    $sql = "update chat set recd = 1 where chat.to = '".mysql_real_escape_string($_SESSION['username'])."' and recd = 0";
    $query = mysql_query($sql);
 
    if ($items != '') {
        $items = substr($items, 0, -1);
    }
header('Content-type: application/json');
?>
{
        "items": [
            <?php echo $items;?>
        ]
}
 
<?php
            exit(0);
}
 
function chatBoxSession($chatbox) {
    
    $items = '';
    
    if (isset($_SESSION['chatHistory'][$chatbox])) {
        $items = $_SESSION['chatHistory'][$chatbox];
    }
 
    return $items;
}
 
function startChatSession() {
    $items = '';
    if (!empty($_SESSION['openChatBoxes'])) {
        foreach ($_SESSION['openChatBoxes'] as $chatbox => $void) {
            $items .= chatBoxSession($chatbox);
        }
    }
 
 
    if ($items != '') {
        $items = substr($items, 0, -1);
    }
 
header('Content-type: application/json');
?>
{
        "username": "<?php echo $_SESSION['username'];?>",
        "items": [
            <?php echo $items;?>
        ]
}
 
<?php
 
 
    exit(0);
}
 
function sendChat() {
    $from = $_SESSION['username'];
    $to = $_POST['to'];
    $message = $_POST['message'];
 
    $_SESSION['openChatBoxes'][$_POST['to']] = date('Y-m-d H:i:s', time());
    
    $messagesan = sanitize($message);
 
    if (!isset($_SESSION['chatHistory'][$_POST['to']])) {
        $_SESSION['chatHistory'][$_POST['to']] = '';
    }
 
    $_SESSION['chatHistory'][$_POST['to']] .= <<<EOD
                       {
            "s": "1",
            "f": "{$to}",
            "m": "{$messagesan}"
       },
EOD;
 
 
    unset($_SESSION['tsChatBoxes'][$_POST['to']]);
 
    $sql = "insert into chat (chat.from,chat.to,message,sent) values ('".mysql_real_escape_string($from)."', '".mysql_real_escape_string($to)."','".mysql_real_escape_string($message)."',NOW())";
    $query = mysql_query($sql);
    echo "1";
    exit(0);
}
 
function closeChat() {
 
    unset($_SESSION['openChatBoxes'][$_POST['chatbox']]);
    
    echo "1";
    exit(0);
}
 
function sanitize($text) {
    $text = htmlspecialchars($text, ENT_QUOTES);
    $text = str_replace("\n\r","\n",$text);
    $text = str_replace("\r\n","\n",$text);
    $text = str_replace("\n","<br>",$text);
    return $text;
}
 
?>