PHP display_size函数代码示例

 /**
  * Add question-type specific form fields.
  *
  * @param MoodleQuickForm $mform the form being built.
  */
 function definition_inner(&$mform)
 {
     global $COURSE, $CFG;
     // don't need these default elements :
     $mform->removeElement('defaultgrade');
     $mform->removeElement('penalty');
     $mform->addElement('html', '<a target="_new" href="' . $CFG->wwwroot . '/files/index.php?id=' . $COURSE->id . '">' . get_string("openinnewwindow", "qtype_imagedit") . '</a>');
     // this element will hold the URL of the HTML's IMG SRC value
     // of the altered image file that was uploaded by the user
     // to the current course's "users" folder
     //$mform->addElement('hidden', 'imgurl', '');
     // add feedback
     $mform->addElement('htmleditor', 'feedback', get_string("feedback", "quiz"));
     $mform->setType('feedback', PARAM_RAW);
     // add default elements
     $mform->addElement('hidden', 'defaultgrade', 0);
     $mform->addElement('hidden', 'fraction', 0);
     // add max upload limit menu
     $choices = get_max_upload_sizes($CFG->maxbytes, $COURSE->maxbytes);
     $choices[0] = get_string('courseuploadlimit') . ' (' . display_size($COURSE->maxbytes) . ')';
     $mform->addElement('select', 'maxbytes', get_string('maximumupload'), $choices);
     $mform->setDefault('maxbytes', $COURSE->maxbytes);
     // add essay area checkbox
     $mform->addElement('advcheckbox', 'essay', get_string('addessay', 'qtype_imagedit'), null, null, array(0, 1));
 }

 public function __construct($path = SEARCH_INDEX_PATH)
 {
     global $CFG, $db;
     $this->path = $path;
     //test to see if there is a valid index on disk, at the specified path
     try {
         $test_index = new Zend_Search_Lucene($this->path, false);
         $validindex = true;
     } catch (Exception $e) {
         $validindex = false;
     }
     //retrieve file system info about the index if it is valid
     if ($validindex) {
         $this->size = display_size(get_directory_size($this->path));
         $index_dir = get_directory_list($this->path, '', false, false);
         $this->filecount = count($index_dir);
         $this->indexcount = $test_index->count();
     } else {
         $this->size = 0;
         $this->filecount = 0;
         $this->indexcount = 0;
     }
     $db_exists = false;
     //for now
     //get all the current tables in moodle
     $admin_tables = $db->MetaTables();
     //TODO: use new IndexDBControl class for database checks?
     //check if our search table exists
     if (in_array($CFG->prefix . SEARCH_DATABASE_TABLE, $admin_tables)) {
         //retrieve database information if it does
         $db_exists = true;
         //total documents
         $this->dbcount = count_records(SEARCH_DATABASE_TABLE);
         //individual document types
         // $types = search_get_document_types();
         $types = search_collect_searchables(true, false);
         sort($types);
         foreach ($types as $type) {
             $c = count_records(SEARCH_DATABASE_TABLE, 'doctype', $type);
             $this->types[$type] = (int) $c;
         }
     } else {
         $this->dbcount = 0;
         $this->types = array();
     }
     //check if the busy flag is set
     if (isset($CFG->search_indexer_busy) && $CFG->search_indexer_busy == '1') {
         $this->complete = false;
     } else {
         $this->complete = true;
     }
     //get the last run date for the indexer
     if ($this->valid() && $CFG->search_indexer_run_date) {
         $this->time = $CFG->search_indexer_run_date;
     } else {
         $this->time = 0;
     }
 }

 /**
  * Override createElement event to add max files
  */
 function onQuickFormEvent($event, $arg, &$caller)
 {
     if ($event == 'createElement') {
         $className = get_class($this);
         $this->{$className}($arg[0], $arg[1] . ' (' . get_string('maxsize', '', display_size($caller->getMaxFileSize())) . ')', $arg[2]);
         return true;
     }
     return parent::onQuickFormEvent($event, $arg, $caller);
 }

 public function execute()
 {
     global $CFG, $DB;
     $options = $this->expandedOptions;
     $dataroot = run_external_command("du -s {$CFG->dataroot}", "Couldn't find dataroot directory");
     $pattern = '/\\d*/';
     preg_match($pattern, $dataroot[0], $matches);
     $filedir = run_external_command("du -s {$CFG->dataroot}/filedir", "Couldn't find filedir directory");
     preg_match($pattern, $filedir[0], $dir_matches);
     $sql_query = "SELECT SUM(filesize) AS total FROM {files}";
     $all_files = $DB->get_record_sql($sql_query);
     $sql_query = "SELECT DISTINCT contenthash, SUM(filesize) AS total FROM {files}";
     if (is_a($DB, 'pgsql_native_moodle_database')) {
         $sql_query .= " GROUP BY contenthash";
         $distinct_contenthash = $DB->get_records_sql($sql_query);
         $total = 0;
         foreach ($distinct_contenthash as $k => $v) {
             $total += $v->total;
         }
         $distinctfilestotal = $total;
     } else {
         $distinct_contenthash = $DB->get_record_sql($sql_query);
         $distinctfilestotal = $distinct_contenthash->total;
     }
     $filesbycourse = array();
     if ($courses = get_all_courses()) {
         foreach ($courses as $course) {
             $subcontexts = get_sub_context_ids($course->ctxpath);
             $filesbycourse[$course->id] = array('unique' => 0, 'all' => 0);
             foreach ($subcontexts as $subcontext) {
                 if ($files = get_files($subcontext->id)) {
                     foreach ($files as $file) {
                         $filesbycourse[$course->id]['unique'] += file_is_unique($file->contenthash, $subcontext->id) ? $file->filesize : 0;
                         $filesbycourse[$course->id]['all'] += $file->filesize;
                     }
                 }
             }
         }
     }
     $sortarray = higher_size($filesbycourse);
     $backups = backup_size();
     $data = array('dataroot' => $matches[0], 'filedir' => $dir_matches[0], 'files total' => $all_files->total, 'distinct files total' => $distinctfilestotal);
     foreach ($sortarray as $courseid => $values) {
         $data["Course {$courseid} files total"] = strval($values['all']);
         $data["Course {$courseid} files unique"] = strval($values['unique']);
     }
     foreach ($backups as $key => $values) {
         $data["Backup {$values->username}"] = strval($values->backupsize);
     }
     if ($options['json']) {
         echo json_encode($data);
     } else {
         foreach ($data as $k => $v) {
             echo "{$k}: " . display_size($v) . "\n";
         }
     }
 }

/**
 * get_performance_output() override get_peformance_info()
 *  in moodlelib.php. Returns a string
 * values ready for use.
 *
 * @return string
 */
function krystle2_performance_output($param) {
	
    $html = '<div class="performanceinfo"><ul>';
	if (isset($param['realtime'])) $html .= '<li><a class="red" href="#"><var>'.$param['realtime'].' secs</var><span>Load Time</span></a></li>';
	if (isset($param['memory_total'])) $html .= '<li><a class="orange" href="#"><var>'.display_size($param['memory_total']).'</var><span>Memory Used</span></a></li>';
    if (isset($param['includecount'])) $html .= '<li><a class="blue" href="#"><var>'.$param['includecount'].' Files </var><span>Included</span></a></li>';
    if (isset($param['dbqueries'])) $html .= '<li><a class="purple" href="#"><var>'.$param['dbqueries'].' </var><span>DB Read/Write</span></a></li>';
    $html .= '</ul></div>';

    return $html;
}

 function view_upload_form()
 {
     global $CFG;
     $struploadafile = get_string("uploadafile");
     $strmaxsize = get_string("maxsize", "", display_size($this->wqmaxbytes));
     echo '<center>';
     echo '<form enctype="multipart/form-data" method="post" ' . "action=\"{$CFG->wwwroot}/mod/webquestscorm/upload.php\">";
     echo "<p>{$struploadafile} ({$strmaxsize})</p>";
     echo '<input type="hidden" name="cmid" value="' . $this->cm->id . '" />';
     require_once $CFG->libdir . '/uploadlib.php';
     upload_print_form_fragment(1, array('newfile'), false, null, 0, $this->wqmaxbytes, false);
     echo '<input type="submit" name="save" value="' . get_string('uploadthisfile') . '" />';
     echo '</form>';
     echo '</center>';
 }

function print_table($data)
{
    $table = new html_table();
    $table->head = array(get_string('lastcrawledtime', 'local_linkchecker_robot'), get_string('linktext', 'local_linkchecker_robot'), get_string('idattr', 'local_linkchecker_robot'), get_string('response', 'local_linkchecker_robot'), get_string('size', 'local_linkchecker_robot'), get_string('url', 'local_linkchecker_robot'), get_string('mimetype', 'local_linkchecker_robot'));
    $table->data = array();
    foreach ($data as $row) {
        $text = trim($row->title);
        if (!$text || $text == "") {
            $text = get_string('unknown', 'local_linkchecker_robot');
        }
        $code = local_linkchecker_robot_http_code($row);
        $size = $row->filesize * 1;
        $data = array(userdate($row->lastcrawled, '%h %e,&nbsp;%H:%M:%S'), $row->text, str_replace(' #', '<br>#', $row->idattr), $code, display_size($size), local_linkchecker_robot_link($row->target, $text, $row->redirect), $row->mimetype);
        $table->data[] = $data;
    }
    echo html_writer::table($table);
}

 function view_upload_form()
 {
     global $CFG;
     $struploadafile = get_string("uploadafile");
     $maxbytes = $this->assignment->maxbytes == 0 ? $this->course->maxbytes : $this->assignment->maxbytes;
     $strmaxsize = get_string('maxsize', '', display_size($maxbytes));
     echo '<div style="text-align:center">';
     echo '<form enctype="multipart/form-data" method="post" ' . "action=\"{$CFG->wwwroot}/mod/assignment/upload-embedded.php\">";
     echo '<fieldset class="invisiblefieldset">';
     echo "<p>{$struploadafile} ({$strmaxsize})</p>";
     echo '<input type="hidden" name="id" value="' . $this->cm->id . '" />';
     require_once $CFG->libdir . '/uploadlib.php';
     upload_print_form_fragment(1, array('newfile'), false, null, 0, $this->assignment->maxbytes, false);
     echo '<input type="submit" name="save" value="' . get_string('uploadthisfile') . '" />';
     echo '</fieldset>';
     echo '</form>';
     echo '</div>';
 }

 /**
  * Add question-type specific form fields.
  *
  * @param MoodleQuickForm $mform the form being built.
  */
 function definition_inner(&$mform)
 {
     global $COURSE, $CFG;
     // don't need these default elements :
     $mform->removeElement('defaultgrade');
     $mform->removeElement('penalty');
     // add feedback
     $mform->addElement('htmleditor', 'feedback', get_string("feedback", "quiz"));
     $mform->setType('feedback', PARAM_RAW);
     // add default elements
     $mform->addElement('hidden', 'defaultgrade', 0);
     $mform->addElement('hidden', 'fraction', 0);
     // add max upload limit menu
     $choices = get_max_upload_sizes($CFG->maxbytes, $COURSE->maxbytes);
     $choices[0] = get_string('courseuploadlimit') . ' (' . display_size($COURSE->maxbytes) . ')';
     $mform->addElement('select', 'maxbytes', get_string('maximumupload'), $choices);
     $mform->setDefault('maxbytes', $COURSE->maxbytes);
     // add essay area checkbox
     $mform->addElement('advcheckbox', 'essay', get_string('addessay', 'qtype_fileresponse'), null, null, array(0, 1));
 }

 public static function render_instance(BlockInstance $instance, $editing = false)
 {
     require_once get_config('docroot') . 'artefact/lib.php';
     $configdata = $instance->get('configdata');
     $result = '';
     if (isset($configdata['artefactids']) && is_array($configdata['artefactids'])) {
         foreach ($configdata['artefactids'] as $artefactid) {
             try {
                 $artefact = $instance->get_artefact_instance($artefactid);
             } catch (ArtefactNotFoundException $e) {
                 continue;
             }
             $icondata = array('id' => $artefactid, 'viewid' => $instance->get('view'));
             $detailsurl = get_config('wwwroot') . 'view/artefact.php?artefact=' . $artefactid . '&view=' . $instance->get('view');
             if ($artefact instanceof ArtefactTypeProfileIcon) {
                 require_once 'file.php';
                 $downloadurl = get_config('wwwroot') . 'thumb.php?type=profileiconbyid&id=' . $artefactid;
                 $size = filesize(get_dataroot_image_path('artefact/file/profileicons/', $artefactid));
             } else {
                 if ($artefact instanceof ArtefactTypeFile) {
                     $downloadurl = get_config('wwwroot') . 'artefact/file/download.php?file=' . $artefactid . '&view=' . $icondata['viewid'];
                     $size = $artefact->get('size');
                 }
             }
             $result .= '<div title="' . hsc($artefact->get('title')) . '">';
             $result .= '<div class="fl"><a href="' . hsc($downloadurl) . '">';
             $result .= '<img src="' . hsc(call_static_method(generate_artefact_class_name($artefact->get('artefacttype')), 'get_icon', $icondata)) . '" alt=""></a></div>';
             $result .= '<div style="margin-left: 30px;">';
             $result .= '<h4><a href="' . hsc($detailsurl) . '">' . str_shorten_text($artefact->get('title'), 20) . '</a></h4>';
             $description = $artefact->get('description');
             if ($description) {
                 $result .= '<p style="margin: 0;"><strong>' . hsc($description) . '</strong></p>';
             }
             $result .= '' . display_size($size) . ' | ' . strftime(get_string('strftimedaydate'), $artefact->get('ctime'));
             $result .= '</div>';
             $result .= '</div>';
         }
     }
     return $result;
 }

/**
 * Dwoo {mahara_performance_info} function plugin
 *
 * Type:     function<br>
 * Name:     mahara_performance_info<br>
 * Date:     June 22, 2006<br>
 * Purpose:  Fetch internationalized strings
 * @author   Catalyst IT Ltd
 * @version  1.0
 * @return html to display in the footer.
 */
function Dwoo_Plugin_mahara_performance_info(Dwoo $dwoo)
{
    if (!get_config('perftofoot') && !get_config('perftolog')) {
        return;
    }
    $info = get_performance_info();
    $dwoo = smarty_core();
    foreach ($info as $key => $value) {
        if ($key == 'realtime') {
            $value = round($value, 3);
        }
        $dwoo->assign('perf_' . $key, $value);
    }
    // extras
    $dwoo->assign('perf_memory_total_display', display_size($info['memory_total']));
    $dwoo->assign('perf_memory_growth_display', display_size($info['memory_growth']));
    if (get_config('perftolog')) {
        perf_to_log($info);
    }
    if (get_config('perftofoot')) {
        return $dwoo->fetch('performancefooter.tpl');
    }
}

function adduser_validate(Pieform $form, $values)
{
    global $USER, $TRANSPORTER;
    $authobj = AuthFactory::create($values['authinstance']);
    $institution = $authobj->institution;
    // Institutional admins can only set their own institutions' authinstances
    if (!$USER->get('admin') && !$USER->is_institutional_admin($authobj->institution)) {
        $form->set_error('authinstance', get_string('notadminforinstitution', 'admin'));
        return;
    }
    $institution = new Institution($authobj->institution);
    // Don't exceed max user accounts for the institution
    if ($institution->isFull()) {
        $institution->send_admin_institution_is_full_message();
        $form->set_error('authinstance', get_string('institutionmaxusersexceeded', 'admin'));
        return;
    }
    $username = $values['username'];
    $firstname = sanitize_firstname($values['firstname']);
    $lastname = sanitize_lastname($values['lastname']);
    $email = sanitize_email($values['email']);
    $password = $values['password'];
    if ($USER->get('admin') || get_config_plugin('artefact', 'file', 'institutionaloverride')) {
        $maxquotaenabled = get_config_plugin('artefact', 'file', 'maxquotaenabled');
        $maxquota = get_config_plugin('artefact', 'file', 'maxquota');
        if ($maxquotaenabled && $values['quota'] > $maxquota) {
            $form->set_error('quota', get_string('maxquotaexceededform', 'artefact.file', display_size($maxquota)));
        }
    }
    if (method_exists($authobj, 'is_username_valid_admin')) {
        if (!$authobj->is_username_valid_admin($username)) {
            $form->set_error('username', get_string('usernameinvalidadminform', 'auth.internal'));
        }
    } else {
        if (method_exists($authobj, 'is_username_valid')) {
            if (!$authobj->is_username_valid($username)) {
                $form->set_error('username', get_string('usernameinvalidform', 'auth.internal'));
            }
        }
    }
    if (!$form->get_error('username') && record_exists_select('usr', 'LOWER(username) = ?', array(strtolower($username)))) {
        $form->set_error('username', get_string('usernamealreadytaken', 'auth.internal'));
    }
    if (method_exists($authobj, 'is_password_valid') && !$authobj->is_password_valid($password)) {
        $form->set_error('password', get_string('passwordinvalidform', 'auth.' . $authobj->type));
    }
    if (isset($_POST['createmethod']) && $_POST['createmethod'] == 'leap2a') {
        $form->set_error('firstname', null);
        $form->set_error('lastname', null);
        $form->set_error('email', null);
        if (!$values['leap2afile'] && ($_FILES['leap2afile']['error'] == UPLOAD_ERR_INI_SIZE || $_FILES['leap2afile']['error'] == UPLOAD_ERR_FORM_SIZE)) {
            $form->reply(PIEFORM_ERR, array('message' => get_string('uploadedfiletoobig'), 'goto' => '/admin/users/add.php'));
            $form->set_error('leap2afile', get_string('uploadedfiletoobig'));
            return;
        } else {
            if (!$values['leap2afile']) {
                $form->set_error('leap2afile', $form->i18n('rule', 'required', 'required'));
                return;
            }
        }
        if ($values['leap2afile']['type'] == 'application/octet-stream') {
            require_once 'file.php';
            $mimetype = file_mime_type($values['leap2afile']['tmp_name']);
        } else {
            $mimetype = trim($values['leap2afile']['type'], '"');
        }
        $date = time();
        $niceuser = preg_replace('/[^a-zA-Z0-9_-]/', '-', $values['username']);
        safe_require('import', 'leap');
        $fakeimportrecord = (object) array('data' => array('importfile' => $values['leap2afile']['tmp_name'], 'importfilename' => $values['leap2afile']['name'], 'importid' => $niceuser . '-' . $date, 'mimetype' => $mimetype));
        $TRANSPORTER = new LocalImporterTransport($fakeimportrecord);
        try {
            $TRANSPORTER->extract_file();
            PluginImportLeap::validate_transported_data($TRANSPORTER);
        } catch (Exception $e) {
            $form->set_error('leap2afile', $e->getMessage());
        }
    } else {
        if (!$form->get_error('firstname') && empty($firstname)) {
            $form->set_error('firstname', $form->i18n('rule', 'required', 'required'));
        }
        if (!$form->get_error('lastname') && empty($lastname)) {
            $form->set_error('lastname', $form->i18n('rule', 'required', 'required'));
        }
        if (!$form->get_error('email')) {
            if (!$form->get_error('email') && empty($email)) {
                $form->set_error('email', get_string('invalidemailaddress', 'artefact.internal'));
            }
            if (record_exists('usr', 'email', $email) || record_exists('artefact_internal_profile_email', 'email', $email)) {
                $form->set_error('email', get_string('emailalreadytaken', 'auth.internal'));
            }
        }
    }
}

/**
 * get_performance_info() pairs up with init_performance_info()
 * loaded in setup.php. Returns an array with 'html' and 'txt'
 * values ready for use, and each of the individual stats provided
 * separately as well.
 *
 * @return array
 */
function get_performance_info()
{
    global $CFG, $PERF, $DB, $PAGE;
    $info = array();
    $info['txt'] = me() . ' ';
    // Holds log-friendly representation.
    $info['html'] = '';
    if (!empty($CFG->themedesignermode)) {
        // Attempt to avoid devs debugging peformance issues, when its caused by css building and so on.
        $info['html'] .= '<p><strong>Warning: Theme designer mode is enabled.</strong></p>';
    }
    $info['html'] .= '<ul class="list-unstyled m-l-1">';
    // Holds userfriendly HTML representation.
    $info['realtime'] = microtime_diff($PERF->starttime, microtime());
    $info['html'] .= '<li class="timeused">' . $info['realtime'] . ' secs</li> ';
    $info['txt'] .= 'time: ' . $info['realtime'] . 's ';
    if (function_exists('memory_get_usage')) {
        $info['memory_total'] = memory_get_usage();
        $info['memory_growth'] = memory_get_usage() - $PERF->startmemory;
        $info['html'] .= '<li class="memoryused">RAM: ' . display_size($info['memory_total']) . '</li> ';
        $info['txt'] .= 'memory_total: ' . $info['memory_total'] . 'B (' . display_size($info['memory_total']) . ') memory_growth: ' . $info['memory_growth'] . 'B (' . display_size($info['memory_growth']) . ') ';
    }
    if (function_exists('memory_get_peak_usage')) {
        $info['memory_peak'] = memory_get_peak_usage();
        $info['html'] .= '<li class="memoryused">RAM peak: ' . display_size($info['memory_peak']) . '</li> ';
        $info['txt'] .= 'memory_peak: ' . $info['memory_peak'] . 'B (' . display_size($info['memory_peak']) . ') ';
    }
    $inc = get_included_files();
    $info['includecount'] = count($inc);
    $info['html'] .= '<li class="included">Included ' . $info['includecount'] . ' files</li> ';
    $info['txt'] .= 'includecount: ' . $info['includecount'] . ' ';
    if (!empty($CFG->early_install_lang) or empty($PAGE)) {
        // We can not track more performance before installation or before PAGE init, sorry.
        return $info;
    }
    $filtermanager = filter_manager::instance();
    if (method_exists($filtermanager, 'get_performance_summary')) {
        list($filterinfo, $nicenames) = $filtermanager->get_performance_summary();
        $info = array_merge($filterinfo, $info);
        foreach ($filterinfo as $key => $value) {
            $info['html'] .= "<li class='{$key}'>{$nicenames[$key]}: {$value} </li> ";
            $info['txt'] .= "{$key}: {$value} ";
        }
    }
    $stringmanager = get_string_manager();
    if (method_exists($stringmanager, 'get_performance_summary')) {
        list($filterinfo, $nicenames) = $stringmanager->get_performance_summary();
        $info = array_merge($filterinfo, $info);
        foreach ($filterinfo as $key => $value) {
            $info['html'] .= "<li class='{$key}'>{$nicenames[$key]}: {$value} </li> ";
            $info['txt'] .= "{$key}: {$value} ";
        }
    }
    if (!empty($PERF->logwrites)) {
        $info['logwrites'] = $PERF->logwrites;
        $info['html'] .= '<li class="logwrites">Log DB writes ' . $info['logwrites'] . '</li> ';
        $info['txt'] .= 'logwrites: ' . $info['logwrites'] . ' ';
    }
    $info['dbqueries'] = $DB->perf_get_reads() . '/' . ($DB->perf_get_writes() - $PERF->logwrites);
    $info['html'] .= '<li class="dbqueries">DB reads/writes: ' . $info['dbqueries'] . '</li> ';
    $info['txt'] .= 'db reads/writes: ' . $info['dbqueries'] . ' ';
    $info['dbtime'] = round($DB->perf_get_queries_time(), 5);
    $info['html'] .= '<li class="dbtime">DB queries time: ' . $info['dbtime'] . ' secs</li> ';
    $info['txt'] .= 'db queries time: ' . $info['dbtime'] . 's ';
    if (function_exists('posix_times')) {
        $ptimes = posix_times();
        if (is_array($ptimes)) {
            foreach ($ptimes as $key => $val) {
                $info[$key] = $ptimes[$key] - $PERF->startposixtimes[$key];
            }
            $info['html'] .= "<li class=\"posixtimes\">ticks: {$info['ticks']} user: {$info['utime']} sys: {$info['stime']} cuser: {$info['cutime']} csys: {$info['cstime']}</li> ";
            $info['txt'] .= "ticks: {$info['ticks']} user: {$info['utime']} sys: {$info['stime']} cuser: {$info['cutime']} csys: {$info['cstime']} ";
        }
    }
    // Grab the load average for the last minute.
    // /proc will only work under some linux configurations
    // while uptime is there under MacOSX/Darwin and other unices.
    if (is_readable('/proc/loadavg') && ($loadavg = @file('/proc/loadavg'))) {
        list($serverload) = explode(' ', $loadavg[0]);
        unset($loadavg);
    } else {
        if (function_exists('is_executable') && is_executable('/usr/bin/uptime') && ($loadavg = `/usr/bin/uptime`)) {
            if (preg_match('/load averages?: (\\d+[\\.,:]\\d+)/', $loadavg, $matches)) {
                $serverload = $matches[1];
            } else {
                trigger_error('Could not parse uptime output!');
            }
        }
    }
    if (!empty($serverload)) {
        $info['serverload'] = $serverload;
        $info['html'] .= '<li class="serverload">Load average: ' . $info['serverload'] . '</li> ';
//.........这里部分代码省略.........

 *
 * @package    mahara
 * @subpackage core
 * @author     Catalyst IT Ltd
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL version 3 or later
 * @copyright  For copyright information on Mahara, please see the README file distributed with this software.
 *
 */
define('INTERNAL', 1);
define('JSON', 1);
define('INSTITUTIONALADMIN', 1);
require dirname(dirname(dirname(__FILE__))) . '/init.php';
require_once 'pieforms/pieform/elements/bytes.php';
$instid = param_integer('instid');
$disabled = param_boolean('disabled', false);
$definst = get_field('auth_instance', 'id', 'institution', 'mahara');
$record = get_record_sql('SELECT i.name, i.defaultquota FROM {institution} i JOIN {auth_instance} ai ON (i.name = ai.institution) WHERE ai.id = ?', array($instid));
if (!$USER->get('admin') && !$USER->is_institutional_admin($record->name)) {
    json_reply(true, 'You are not an administrator for institution ' . $record->name);
    return;
}
if ($definst && $instid == $definst) {
    $quota = get_config_plugin('artefact', 'file', 'defaultquota');
} else {
    $quota = $record->defaultquota;
    if (!$quota) {
        $quota = get_config_plugin('artefact', 'file', 'defaultquota');
    }
}
$data = array('data' => $disabled ? display_size($quota) : pieform_element_bytes_get_bytes_from_bytes($quota), 'error' => false, 'message' => null);
json_reply(false, $data);

/**
 * Listing all files (including folders) in current path (draft area)
 * used by file manager
 * @param int $draftitemid
 * @param string $filepath
 * @return stdClass
 */
function file_get_drafarea_files($draftitemid, $filepath = '/')
{
    global $USER, $OUTPUT, $CFG;
    $context = context_user::instance($USER->id);
    $fs = get_file_storage();
    $data = new stdClass();
    $data->path = array();
    $data->path[] = array('name' => get_string('files'), 'path' => '/');
    // will be used to build breadcrumb
    $trail = '/';
    if ($filepath !== '/') {
        $filepath = file_correct_filepath($filepath);
        $parts = explode('/', $filepath);
        foreach ($parts as $part) {
            if ($part != '' && $part != null) {
                $trail .= $part . '/';
                $data->path[] = array('name' => $part, 'path' => $trail);
            }
        }
    }
    $list = array();
    $maxlength = 12;
    if ($files = $fs->get_directory_files($context->id, 'user', 'draft', $draftitemid, $filepath, false)) {
        foreach ($files as $file) {
            $item = new stdClass();
            $item->filename = $file->get_filename();
            $item->filepath = $file->get_filepath();
            $item->fullname = trim($item->filename, '/');
            $filesize = $file->get_filesize();
            $item->size = $filesize ? $filesize : null;
            $item->filesize = $filesize ? display_size($filesize) : '';
            $item->sortorder = $file->get_sortorder();
            $item->author = $file->get_author();
            $item->license = $file->get_license();
            $item->datemodified = $file->get_timemodified();
            $item->datecreated = $file->get_timecreated();
            $item->isref = $file->is_external_file();
            if ($item->isref && $file->get_status() == 666) {
                $item->originalmissing = true;
            }
            // find the file this draft file was created from and count all references in local
            // system pointing to that file
            $source = @unserialize($file->get_source());
            if (isset($source->original)) {
                $item->refcount = $fs->search_references_count($source->original);
            }
            if ($file->is_directory()) {
                $item->filesize = 0;
                $item->icon = $OUTPUT->pix_url(file_folder_icon(24))->out(false);
                $item->type = 'folder';
                $foldername = explode('/', trim($item->filepath, '/'));
                $item->fullname = trim(array_pop($foldername), '/');
                $item->thumbnail = $OUTPUT->pix_url(file_folder_icon(90))->out(false);
            } else {
                // do NOT use file browser here!
                $item->mimetype = get_mimetype_description($file);
                if (file_extension_in_typegroup($file->get_filename(), 'archive')) {
                    $item->type = 'zip';
                } else {
                    $item->type = 'file';
                }
                $itemurl = moodle_url::make_draftfile_url($draftitemid, $item->filepath, $item->filename);
                $item->url = $itemurl->out();
                $item->icon = $OUTPUT->pix_url(file_file_icon($file, 24))->out(false);
                $item->thumbnail = $OUTPUT->pix_url(file_file_icon($file, 90))->out(false);
                if ($imageinfo = $file->get_imageinfo()) {
                    $item->realthumbnail = $itemurl->out(false, array('preview' => 'thumb', 'oid' => $file->get_timemodified()));
                    $item->realicon = $itemurl->out(false, array('preview' => 'tinyicon', 'oid' => $file->get_timemodified()));
                    $item->image_width = $imageinfo['width'];
                    $item->image_height = $imageinfo['height'];
                }
            }
            $list[] = $item;
        }
    }
    $data->itemid = $draftitemid;
    $data->list = $list;
    return $data;
}