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216 lines
7.0 KiB
216 lines
7.0 KiB
<?php
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// $Id: class_user_import.php 9018 2006-06-28 15:11:16Z evie_em $
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2005 Bart Mollet <bart.mollet@hogent.be>
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
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==============================================================================
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*/
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/**
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==============================================================================
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* This tool allows platform admins to update class-user relations by uploading a
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* CSVfile
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* @package dokeos.admin
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==============================================================================
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*/
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/**
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* validate the imported data
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*/
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function validate_data($user_classes)
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{
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$errors = array ();
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$classcodes = array ();
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foreach ($user_classes as $index => $user_class)
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{
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$user_class['line'] = $index +1;
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//1. check if mandatory fields are set
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$mandatory_fields = array ('UserName', 'ClassName');
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foreach ($mandatory_fields as $key => $field)
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{
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if (!isset ($user_class[$field]) || strlen($user_class[$field]) == 0)
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{
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$user_class['error'] = get_lang($field.'Mandatory');
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$errors[] = $user_class;
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}
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}
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//2. check if classcode exists
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if (isset ($user_class['ClassName']) && strlen($user_class['ClassName']) != 0)
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{
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//2.1 check if code allready used in this CVS-file
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if (!isset ($classcodes[$user_class['ClassName']]))
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{
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//2.1.1 check if code exists in DB
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$class_table = Database :: get_main_table(TABLE_MAIN_CLASS);
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$sql = "SELECT * FROM $class_table WHERE name = '".Database::escape_string($user_class['ClassName'])."'";
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$res = api_sql_query($sql, __FILE__, __LINE__);
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if (Database::num_rows($res) == 0)
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{
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$user_class['error'] = get_lang('CodeDoesNotExists');
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$errors[] = $user_class;
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}
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else
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{
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$classcodes[$user_class['CourseCode']] = 1;
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}
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}
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}
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//3. check if username exists
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if (isset ($user_class['UserName']) && strlen($user_class['UserName']) != 0)
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{
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if (UserManager :: is_username_available($user_class['UserName']))
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{
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$user_class['error'] = get_lang('UnknownUser').":".$user_class['UserName'];
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$errors[] = $user_class;
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}
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}
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}
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return $errors;
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}
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/**
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* Save the imported data
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*/
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function save_data($users_classes)
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{
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// table definitions
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$user_table = Database :: get_main_table(TABLE_MAIN_USER);
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$class_user_table = Database :: get_main_table(TABLE_MAIN_CLASS_USER);
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$class_table = Database :: get_main_table(TABLE_MAIN_CLASS);
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$csv_data = array ();
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foreach ($users_classes as $index => $user_class)
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{
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$sql = "SELECT * FROM $class_table WHERE name = '".mysql_real_escape_string($user_class['ClassName'])."'";
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$res = api_sql_query($sql, __FILE__, __LINE__);
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$obj = mysql_fetch_object($res);
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$csv_data[$user_class['UserName']][$obj->id] = 1;
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}
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foreach ($csv_data as $username => $csv_subscriptions)
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{
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$user_id = 0;
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$sql = "SELECT * FROM $user_table u WHERE u.username = '".mysql_real_escape_string($username)."'";
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$res = api_sql_query($sql, __FILE__, __LINE__);
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$obj = mysql_fetch_object($res);
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$user_id = $obj->user_id;
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$sql = "SELECT * FROM $class_user_table cu WHERE cu.user_id = $user_id";
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$res = api_sql_query($sql, __FILE__, __LINE__);
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$db_subscriptions = array ();
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while ($obj = mysql_fetch_object($res))
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{
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$db_subscriptions[$obj->class_id] = 1;
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}
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$to_subscribe = array_diff(array_keys($csv_subscriptions), array_keys($db_subscriptions));
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$to_unsubscribe = array_diff(array_keys($db_subscriptions), array_keys($csv_subscriptions));
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if ($_POST['subscribe'])
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{
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foreach ($to_subscribe as $index => $class_id)
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{
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ClassManager :: add_user($user_id, $class_id);
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//echo get_lang('Subscription').' : '.$course_code.'<br />';
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}
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}
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if ($_POST['unsubscribe'])
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{
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foreach ($to_unsubscribe as $index => $class_id)
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{
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ClassManager :: unsubscribe_user($user_id, $class_id);
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//echo get_lang('Unsubscription').' : '.$course_code.'<br />';
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}
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}
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}
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}
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/**
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* Read the CSV-file
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* @param string $file Path to the CSV-file
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* @return array All course-information read from the file
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*/
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function parse_csv_data($file)
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{
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$courses = Import :: csv_to_array($file);
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return $courses;
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}
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// name of the language file that needs to be included
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$language_file = array ('admin', 'registration');
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$cidReset = true;
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include ('../inc/global.inc.php');
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require_once (api_get_path(LIBRARY_PATH).'fileManage.lib.php');
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require_once (api_get_path(LIBRARY_PATH).'import.lib.php');
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require_once (api_get_path(LIBRARY_PATH).'usermanager.lib.php');
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require_once (api_get_path(LIBRARY_PATH).'classmanager.lib.php');
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require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
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$formSent = 0;
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$errorMsg = '';
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$tool_name = get_lang('AddUsersToAClass').' CSV';
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$interbreadcrumb[] = array ('url' => 'index.php', 'name' => get_lang('PlatformAdmin'));
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set_time_limit(0);
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$form = new FormValidator('class_user_import');
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$form->addElement('file', 'import_file', get_lang('ImportFileLocation'));
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$form->addElement('checkbox', 'subscribe', get_lang('Action'), get_lang('SubscribeUserIfNotAllreadySubscribed'));
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$form->addElement('checkbox', 'unsubscribe', '', get_lang('UnsubscribeUserIfSubscriptionIsNotInFile'));
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$form->addElement('submit', 'submit', get_lang('Ok'));
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if ($form->validate())
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{
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$users_classes = parse_csv_data($_FILES['import_file']['tmp_name']);
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$errors = validate_data($users_classes);
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if (count($errors) == 0)
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{
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save_data($users_classes);
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header('Location: class_list.php?action=show_message&message='.urlencode(get_lang('FileImported')));
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exit ();
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}
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}
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Display :: display_header($tool_name);
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api_display_tool_title($tool_name);
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if (count($errors) != 0)
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{
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$error_message = "\n";
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foreach ($errors as $index => $error_class_user)
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{
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$error_message .= get_lang('Line').' '.$error_class_user['line'].': '.$error_class_user['error'].'</b>: ';
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$error_message .= "\n";
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}
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$error_message .= "\n";
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Display :: display_error_message($error_message);
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}
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$form->display();
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?>
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<p><?php echo get_lang('CSVMustLookLike').' ('.get_lang('MandatoryFields').')'; ?> :</p>
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<blockquote>
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<pre>
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<b>UserName</b>;<b>ClassName</b>
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jdoe;class01
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a.dam;class01
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</pre>
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</blockquote>
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<?php
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/*
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==============================================================================
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FOOTER
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==============================================================================
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*/
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Display :: display_footer();
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?>
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