Chào các anh. Cho em hỏi chút ạ. E đang có file code PHP nhưng khi nhúng thêm đoạn code javascript vào thì nó không nhận được javascript. Em đang làm trên hệ thống LMS Moodle.
code:

<?php

require_once('../../config.php');

global $USER, $CFG,$userid;


$listofusers = "SELECT m.useridfrom as id, COUNT(m.useridfrom) as count,
u.firstname, u.lastname, u.picture, u.imagealt, u.lastaccess
FROM {$CFG->prefix}user u,
{$CFG->prefix}message m
WHERE m.useridto = '$USER->id'
AND u.id = m.useridfrom
GROUP BY m.useridfrom, u.firstname,u.lastname,u.picture,u.lastaccess,u.imagealt";

$users = get_records_sql($listofusers);

if (!empty($users)) {
$content->text .= '<ul class="list">';
$list_of_users = '| ';
foreach ($users as $user) {
$userid = $user->id;
$timeago = format_time(time() - $user->lastaccess);

// Cái này nó không nhận.....Sad
$content->text .= "<script language='javascript'>
document.write('This is my first JavaScript!');
</script>";

//------------->
$content->text .= '<li class="listentry"><div class="user"><a href="'.$CFG->wwwroot.'/user/view.php?id='.$userid.'&amp;course=1" title="'.$timeago.'">';
$content->text .= print_user_picture($user, 1, $user->picture, 0, true, false, '', false);
$content->text .= fullname($user).'</a></div>';
$content->text .= '<div class="message"><a href="'.$CFG->wwwroot.'/message/discussion.php?id='.$userid.'" onclick="this.target=\'message_'.$userid.'\'; return openpopup(\'/message/discussion.php?id='.$userid.'\', \'message_'.$userid.'\', \'menubar=0,location=0,scrollbars,status,resizable,width=400,height=500\', 0);"><img class="iconsmall" src="'.$CFG->pixpath.'/t/message.gif" alt="" />&nbsp;'.$user->count.'</a>';
$content->text .= '</div></li>';
$list_of_users .= fullname($user).' | ';



}
$content->text .='<!--'.get_string('new').' '.get_string('message','message').':'.$list_of_users.'-->';
$content->text .= '</ul>';
} else {
$content->text .= '<div class="info">';
$content->text .= get_string('nomessages', 'message');
$content->text .= '</div>';
}
echo $content->text;

?>


Mong các bro chỉ dùm....

"Nhận" làm sao được mà nhận!
Làm gì có cái kiểu:
$a .= "dòng 1
dòng 2
dòng 3";

Sửa lại:
$a .= "dòng 1"
. "dòng 2"
. "dòng 3";

Cám ơn bro. để em thử xem có được không

Anh ơi nó không ảnh hưởng j cả. em đưa 2 file php đó lên để các bro chỉ giúp em

block_message.php

<?PHP //$Id: block_messages.php,v 1.13.4.6 2008/11/2 10:00:00 Amr Hourani

class block_messages extends block_base {
function init() {
global $CFG;
$this->userid = 0;
$this->title ='<img src="'.$CFG->wwwroot.'/theme/standard/images/image_index/43.gif" style="border: none; width:20px;height:20px;"/>';
$this->title .='<div style="margin-top:-20px; margin-left:26px;">'.get_string('messages','message').'</div>';
$this->version = 2007101510;
}

function has_config() {
return true;
}

function get_content() {
global $USER, $CFG, $COURSE, $userid;

if (!$CFG->messaging) {
return '';
}
if ($this->content !== NULL) {
return $this->content;
}

$this->content = new stdClass;
$this->content->text = '';
$this->content->footer = '';

if (empty($this->instance) or empty($USER->id) or isguest() or empty($CFG->messaging)) {
return $this->content;
}

$this->content->text .='<div id="MessageInbox"></div>';
$session_key = sesskey();

if(empty($CFG->block_messages_refresh) || $CFG->block_messages_refresh == 0){ //never or not set!
$refreshtime = 86400000; //1 day?! no one will stay online for 24 hours!
}else{
$refreshtime = $CFG->block_messages_refresh;
}

$users = get_records_sql("SELECT m.useridfrom as id, COUNT(m.useridfrom) as count,
u.firstname, u.lastname, u.picture, u.imagealt, u.lastaccess
FROM {$CFG->prefix}user u,
{$CFG->prefix}message m
WHERE m.useridto = '$USER->id'
AND u.id = m.useridfrom
GROUP BY m.useridfrom, u.firstname,u.lastname,u.picture,u.lastaccess,u.imagealt");


//Now, we have in users, the list of users to show
//Because they are online
foreach ($users as & $user)
{
$user = $user->id;
}

$this->content->footer = '<a href="'.$CFG->wwwroot.'/message/index.php" onclick="this.target=\'message\'; return openpopup(\'/message/index.php\', \'message\', \'menubar=0,location=0,scrollbars,status,resizable,width=200,height=300\', 0);">'.get_string('messages', 'message').'</a>...';

$this->content->text .='
<script type="text/javascript">
<!--
function ShowMessage(){
var notfication = "'.get_string('check').' '.get_string('messages','message').'...";

document.getElementById("MessageInbox").innerHTML= notfication;
GetNewMessages();
}

function GetNewMessages(){
var objXMLHttp=null;
if (window.XMLHttpRequest){
objXMLHttp=new XMLHttpRequest();
}
else if (window.ActiveXObject){
objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlHttp = objXMLHttp;
var url="'.$CFG->wwwroot.'/blocks/messages/check_messages.php";
url=url+"?updatemessage=1";
url=url+"&sid="+Math.random();
url=url+"&sesskey='.$session_key.'";
xmlHttp.onreadystatechange=stateChangedResult; // this is the function name to call
xmlHttp.open("GET",url,true);
xmlHttp.send(null);

}
function stateChangedResult(){
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){
document.getElementById("MessageInbox").innerHTML= xmlHttp.responseText;
var titlebox = xmlHttp.responseText;
if(titlebox.search( /<!--/ ) != -1){
titlebox = titlebox.slice( titlebox.search( /<!--/ ) );
titlebox = titlebox.replace(/<!--/,"","");
titlebox = titlebox.replace(/--><\/ul>/,"","");




}else{
document.title="'.$COURSE->shortname.'";
}
}
}
setInterval(ShowMessage, '.$refreshtime.'); // Reload every 60 seconds :-)
GetNewMessages(); // to load with page load!
//-->
</script>';
return $this->content;
}

}

?>


check_message.php

<?php //Code by Amr Hourani a.hourani@gmail.com

require_once('../../config.php');
//require_login();
global $USER, $CFG,$userid;

//if(!confirm_sesskey()) error("session mismatch!");

$listofusers = "SELECT m.useridfrom as id, COUNT(m.useridfrom) as count,
u.firstname, u.lastname, u.picture, u.imagealt, u.lastaccess
FROM {$CFG->prefix}user u,
{$CFG->prefix}message m
WHERE m.useridto = '$USER->id'
AND u.id = m.useridfrom
GROUP BY m.useridfrom, u.firstname,u.lastname,u.picture,u.lastaccess,u.imagealt";

$users = get_records_sql($listofusers);

$content ='';

foreach ($users as $user) {
$userid = $user->id;
}
if ($user->id = null)
{
$content .= '<li class="listentry"><div class="user"><a href="'.$CFG->wwwroot.'/user/view.php?id='.$user->id.'&amp;course=1" title="'.$timeago.'">';
$content .= print_user_picture($user, 1, $user->picture, 0, true, false, '', false);
$content .= fullname($user).'</a></div>';
$content .= '<div class="message"><a href="'.$CFG->wwwroot.'/message/discussion.php?id='.$user->id.'" onclick="this.target=\'message_'.$user->id.'\'; return openpopup(\'/message/discussion.php?id='.$user->id.'\', \'message_'.$user->id.'\', \'menubar=0,location=0,scrollbars,status,resizable,width=400,height=500\', 0);"><img class="iconsmall" src="'.$CFG->pixpath.'/t/message.gif" alt="" />&nbsp;'.$user->count.'</a>';
$content .= '</div></li>';
echo'<script type="text/javascript"> alert ("ok"); </script>';
}
else
{
$content .= '<div class="info">';
$content .= get_string('nomessages', 'message');
$content .= '</div>';
echo '<script type="text/javascript"> alert("hey")</script>';

}






print_r($content);

?>


nếu chạy trực tiếp file javascript thì nó vẫn nhận còn quét qua file block_message thì chả có tăm hơi j

Thử view source của trang web xem mã HTML nó sinh ra thế nào, có đúng không?

Em chạy riêng file check_message thì nó vẫn nhận javascript còn khi reload lại trang check_message thông qua code ajax ở file block_message thì nó không đựoc