Code Duplication    Length = 7-9 lines in 2 locations

main/inc/lib/message.lib.php 2 locations

@@ 1607-1613 (lines=7) @@
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                    }
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                    $html .= Display::return_message(api_xml_http_response_encode($success_read), 'normal', false);
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                    break;
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                case 'delete' :
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                    $number_of_selected_messages = count($_POST['id']);
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                    foreach ($_POST['id'] as $index => $message_id) {
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                        MessageManager::delete_message_by_user_receiver(api_get_user_id(), $message_id);
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                    }
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                    $html .= Display::return_message(api_xml_http_response_encode($success), 'normal', false);
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                    break;
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                case 'deleteone' :
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                    MessageManager::delete_message_by_user_receiver(api_get_user_id(), $_GET['id']);
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                    $html .= Display::return_message(api_xml_http_response_encode($success), 'confirmation', false);
@@ 1671-1679 (lines=9) @@
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        $html = null;
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        if (isset($_REQUEST['action'])) {
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            switch ($_REQUEST['action']) {
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                case 'delete' :
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                    $number_of_selected_messages = count($_POST['id']);
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                    if ($number_of_selected_messages != 0) {
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                        foreach ($_POST['id'] as $index => $message_id) {
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                            MessageManager::delete_message_by_user_receiver(api_get_user_id(), $message_id);
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                        }
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                    }
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                    $html .= Display::return_message(api_xml_http_response_encode($success), 'normal', false);
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                    break;
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                case 'deleteone' :
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                    MessageManager::delete_message_by_user_receiver(api_get_user_id(), $_GET['id']);
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                    $html .=Display::return_message(api_xml_http_response_encode($success), 'normal', false);