0: php_network_getaddresses: getaddrinfo failed: Name or service not known<?php
require_once 'comment.php';
require_once 'category.php';

    class Topic {
        private $id;
        const TITLE_TOO_SHORT = NotificationCode::TITLE_TOO_SHORT;
        const TITLE_TOO_LONG = NotificationCode::TITLE_TOO_LONG;
        const MIN_TITLE_LENGTH = 6;
        const MAX_TITLE_LENGTH = 50;
        const PATH = 'topic';
        private $content;
        private $title;
        private $isExists = false;
        private $author;
        private $lastedit;
        private $posttime;

        function __construct($id) {
            $this->id = $id;
            if (is_dir('database/'.Topic::PATH.'/'.$id)) {
                $isExists = true;
                $content = new String(file_get_contents('database/'.Topic::PATH.'/'.$this->id.'/content'));
                $author = new User(file_get_contents('database/'.Topic::PATH.'/'.$this->id.'/author'));
                $title = new String(file_get_contents('database/'.Topic::PATH.'/'.$this->id.'/title'));
                $lastedit = file_get_contents('database/'.Topic::PATH.'/'.$this->id.'/lastedit');
                $posttime = file_get_contents('database/'.Topic::PATH.'/'.$this->id.'/posttime');
            }
        }

        function isExists() {
            return $this->isExists;
        }

        static function isValid(String $title, String $content, User $author) {
            if (strlen($title->getText()) < Topic::MIN_TITLE_LENGTH)
                return Topic::TITLE_TOO_SHORT;
            if (strlen($title->getText()) > Topic::MAX_TITLE_LENGTH)
                return Topic::TITLE_TOO_LONG;
            return Comment::isValid($content, $author);
        }

        function getCommentsNumber() {
            if ($this->isExists())
                return count(scandir('database/'.Topic::PATH.'/'.$this->id.'/comment'));
            return -1;
        }

        function getListComments() {
            $list[] = new Comment();
            if ($this->getCommentsNumber() > 0) {
                $cmid = scandir('database/'.Topic::PATH.'/'.$this->id.'/comment');
                for ($i = 0; $i < $this->getCommentsNumber(); $i++)
                    $list[i] = new Comment($cmid[$i]);
                return $list;
            }
            return null;
        }

        function getTitle() {
            return $this->title;
        }

        function getID() {
            return $this->id;
        }

        function getContent() {
            return $this->content;
        }

        function getAuthor() {
            return $this->author;
        }
        function getLastEdit() {
            return $this->lastedit;
        }

        function getPostTime() {
            return $this->posttime;
        }

        function setTitle(String $title) {
            if ($this->isExists()) {
                Functional::writeFile('database/'.Topic::PATH.'/'.$this->id.'/title', $title->getText(), 'w');
                return true;
            }
            return false;
        }

        function setContent(String $content) {
            if ($this->isExists()) {
                if ($this->setLastEdit(time())) {
                    Functional::writeFile('database/'.Topic::PATH.'/'.$this->id.'/content', $content->getText(), 'w');
                    return true;
                }
            }
            return false;
        }

        private function setLastEdit($time) {
            if ($this->isExists()) {
                Functional::writeFile('database/'.Topic::PATH.'/'.$this->id.'/lastedit', $time, 'w');
                return true;
            }
            return false;
        }

        private function setAuthor(User $author) {
            Functional::writeFile('database/'.Topic::PATH.'/'.$this->id.'/author', $author->getID(), 'w');
        }

        static function createTopic(Category $cat, String $title, String $content, User $author) {
            if (Topic::isValid($title, $content, $author) != NotificationCode::VALID)
                return Topic::isValid($title, $content, $author);

            $id = count(scandir('database/'.Topic::PATH)) + 1;
            $topic = new Topic($id);
            if ($topic->isExists())
                return NotificationCode::CREATE_ERROR;
            //Tạo topic id
            mkdir('database/'.Topic::PATH.'/'.$id);
            //Tạo folder comments cho mỗi topic
            mkdir('database/'.Topic::PATH.'/'.$id.'/comment');
            //Add topic vào category
            Functional::writeFile('database/'.Category::PATH.'/'.$cat->getID().'/topic/'.$id, '', 'w');
            //Create topic
            $posttime = time();
            Functional::writeFile('database/'.Topic::PATH.'/'.$id.'/title', $title->getText(), 'w'); //Ghi title
            Functional::writeFile('database/'.Topic::PATH.'/'.$id.'/content', $content->getText(), 'w'); //Ghi content
            Functional::writeFile('database/'.Topic::PATH.'/'.$id.'/author', $author->getID(), 'w'); //Ghi author
            Functional::writeFile('database/'.Topic::PATH.'/'.$id.'/posttime', $posttime, 'w'); //Ghi posttime
            Functional::writeFile('database/'.Topic::PATH.'/'.$id.'/lastedit', $posttime, 'w'); //Ghi getLastEdit

            return NotificationCode::CREATE_SUCCESS;
        }
    }
?>0: php_network_getaddresses: getaddrinfo failed: Name or service not known            <style type="text/css">

                #xt_auth_container
                {
                    position: static;
                    display: inline;
                    display: inline-block;
                    text-align: right;
                    margin: 3px 0; padding: 0;
                    width: 100%; height: auto;
                    border: none;
                }

                .xt_auth_view
                {
                    position: static;
                    display: inline;
                    display: inline-block;
                    text-align: right;
                    margin: 0; padding: 0;
                    width: auto; height auto;
                    border: none;
                }

                .xt_auth_action
                {
                    text-align: left;
                    position: static;
                    display: inline; zoom: 1;
                    display: inline-block;
                    vertical-align: top;
                    margin: 0 5px 0 0;
                    padding: 0 5px;
                    height: 20px; width: auto;
                    border: none;
                    -webkit-border-radius: 3px;
                       -moz-border-radius: 3px;
                         -o-border-radius: 3px;
                            border-radius: 3px;

                    background-color: #2e2e2e;
                    background-color: rgba(0,0,0,0.4);
                    !background-color: #2e2e2e;
                    font: 600 12px/20px "Helvetica Neue","HelveticaNeue",Helvetica,Arial,sans-serif;
                    text-decoration: none;
                    -webkit-text-shadow: 1px 1px 0 rgba(0,0,0,0.08);
                       -moz-text-shadow: 1px 1px 0 rgba(0,0,0,0.08);
                         -o-text-shadow: 1px 1px 0 rgba(0,0,0,0.08);
                            text-shadow: 1px 1px 0 rgba(0,0,0,0.08);
                    color: #fff;
                    -webkit-user-select: none;
                }

                .xt_auth_action > * { vertical-align: top; }

                .xt_auth_action:hover
                {
                    background-color: #1f1f1f;
                    background-color: rgba(0,0,0,0.6);
                }

                .xt_auth_action:link,
                .xt_auth_action:visited,
                .xt_auth_action:active,
                .xt_auth_action:hover
                {
                    text-decoration: none;
                    color: #fff;
                }

                .xt_auth_icon, .xt_auth_avatar
                {
                    position: static;
                    display: inline; display: inline-block;
                    width: 13px; height: 13px;
                    margin: 3px 1px 0 0;
                    padding: 0;
                    vertical-align: top;
                    border: 0;
                }

                .xt_auth_icon
                {
                    background-image: url(http://xtgem.com/images/authbar/auth_sprite_v2.png);
                    margin-right: 0;
                }


                .xt_auth_icon_enchanted
                    .xt_auth_icon
                {
                    background-size: 103px;
                    /* margin: 4px 2px 0 0; */
                }

                /* join & subscribe */
                .xt_auth_join .xt_auth_icon,
                .xt_auth_subscribe .xt_auth_icon {
                    background-position: -92px 13px;
                }
                /* inbox */
                .xt_auth_inbox
                    .xt_auth_icon { background-position: -78px 13px; }
                /* rate */
                .xt_auth_rate
                    .xt_auth_icon { background-position: 0 14px; }
                /* unrate */
                .xt_auth_unrate
                    .xt_auth_icon { background-position: -13px 14px; }
                /* star */
                .xt_auth_star
                    .xt_auth_icon { background-position: -26px 13px; }
                /* unstar */
                .xt_auth_unstar
                    .xt_auth_icon { background-position: -39px 13px; }
                /* repost */
                .xt_auth_repost
                    .xt_auth_icon { background-position: -52px 12px; margin-top: 4px; }
                /* reposted */
                .xt_auth_reposted
                    .xt_auth_icon { background-position: -65px 12px; margin-top: 4px; }


                /* join & subscribe */
                .xt_auth_icon_enchanted .xt_auth_join .xt_auth_icon,
                .xt_auth_icon_enchanted .xt_auth_subscribe .xt_auth_icon {
                    background-position: 11px 0.5px;
                    width: 12px;
                }
                /* inbox */
                .xt_auth_icon_enchanted
                    .xt_auth_inbox
                        .xt_auth_icon { background-position: 25px 1px; }
                /* rate */
                .xt_auth_icon_enchanted
                    .xt_auth_rate
                        .xt_auth_icon { background-position: 0 0; }
                /* unrate */
                .xt_auth_icon_enchanted
                    .xt_auth_unrate
                        .xt_auth_icon { background-position: -13px 0; }
                /* star */
                .xt_auth_icon_enchanted
                    .xt_auth_star
                        .xt_auth_icon { background-position: 77px 0; }
                /* unstar */
                .xt_auth_icon_enchanted
                    .xt_auth_unstar
                        .xt_auth_icon { background-position: 64px 0; }
                /* repost */
                .xt_auth_icon_enchanted
                    .xt_auth_repost
                        .xt_auth_icon { background-position: 51px 1px; margin: 3px 0 0 0; }
                /* reposted */
                .xt_auth_icon_enchanted
                    .xt_auth_reposted
                        .xt_auth_icon { background-position: 39px 1px; margin: 3px 0 0 0; }

                /* hidding */

                .xt_auth_unstar,
                .xt_auth_unsubscribe,
                .xt_auth_unrate
                {
                    display: none;
                }

                .xt_auth_action_star_active
                    .xt_auth_unstar,

                .xt_auth_action_rate_active
                    .xt_auth_unrate,

                .xt_auth_action_subscribe_active
                    .xt_auth_unsubscribe
                {
                    display: inline-block;
                }

                .xt_auth_action_star_active
                    .xt_auth_star,

                .xt_auth_action_rate_active
                    .xt_auth_rate,

                .xt_auth_action_subscribe_active
                    .xt_auth_subscribe
                {
                    display: none;
                }

                 #xt_auth_container { position: fixed; } 

                 html { padding-top: 20px; } #xt_auth_container { top: 0; left: 0; } #xt_auth_container, .xt_auth_view, .xt_auth_icon, .xt_auth_avatar { max-height: none !important; max-width: none !important; min-width: none !important; min-width: none !important; opacity: 1 !important; text-indent: 0 !important; visibility:visible !important; } 

            </style><div id='xt_auth_container'><div class='xt_auth_view xt_auth_not_logged'><a href='https://xtgem.com/auth/login?redir=VjFadE1YRjVWVk5JVlZsQ1NsQmxVMFl3YzFwUlNrOVFSbUYzV2xkNldVMUlNRkZJU2pGa1RFeGhTajA9&s=VjFkVmJuVkpWVU5IVkV0TlNGUmxSa1oyVDNCSk1VSTk%3D&is_a=1&is_f=0&via=New+authbar' target='_parent' class='xt_auth_action xt_auth_login'>Log in</a></div></div>                <script type="text/javascript">
                    (function () {
                        var doc = document;
                        var body = doc.body;
                        var xhr_done_auth = true;

                        doc.addEventListener ? window.addEventListener( 'load', init, false ) : window.attachEvent( 'onload', init );

                        function init () {
                            doc = document;
                            body = doc.body;

                            var el_auth = doc.getElementById( 'xt_auth_container' );

                            doc.addEventListener ? el_auth.addEventListener( 'click', hook_xhr_action, false ) : el_auth.attachEvent( 'onclick', hook_xhr_action );

                            if ( 'backgroundSize' in doc.body.style ) {
                                if ( window.devicePixelRatio && window.devicePixelRatio > 1 ) {
                                    el_auth.className += ' xt_auth_icon_enchanted';
                                }
                            }
                        }

                        // bind xhr links
                        function hook_xhr_action ( e ) {
                            var e = e || window.event;
                            var target = e.target || e.srcElement;
                                target = target.className == 'xt_auth_icon' ? target.parentNode : target;

                            if ( target.getAttribute( 'data-xhr' ) ) {
                                var url = target.href;
                                    url = url + (url.indexOf( '?' ) == -1 ? '?via_ajax=1' : '&via_ajax=1');
                                load_data({ url: url, xhr_done: xhr_done_auth, callback: handle_xhr_response });
                                (e.preventDefault) ? e.preventDefault() : e.returnValue = false; return false;
                            }
                        }

                        function handle_xhr_response ( xhr ) {

                            function handle_error ( xhr ) {
                                window.location.href = window.location.href;
                            }

                            function handle_success ( xhr ) {
                                var wrapper = document.getElementById( 'xt_auth_container' );
                                var tmp_class = wrapper.className;

                                var current_action = xhr.response.split( ';' )[1];

                                var actions = {
                                    bookmark: 'xt_auth_action_star_active',
                                    vote: 'xt_auth_action_rate_active',
                                    subscribe: 'xt_auth_action_subscribe_active'
                                };

                                for ( key in actions ) {
                                    if ( !actions.hasOwnProperty( key ) ) continue;
                                    if ( current_action.indexOf( key ) == -1 ) continue;

                                    wrapper.className = current_action.indexOf( 'un' ) == -1 ? tmp_class + ' ' + actions[key] : tmp_class.replace( (' ' + actions[key]), '' );
                                }

                            }

                            xhr.response = xhr.response ? xhr.response : xhr.responseText;

                            (xhr.status != 200 || xhr.response.indexOf( 'ERR;') != -1 ) ? handle_error(xhr) : handle_success(xhr);
                        }

                        //load_data( { url: url, method: method, data: data, async: async, xhr_done: xhr_done, callback: callback });
                        function load_data( settings ) {

                            var async = settings.async ? !!settings.async : true,
                                url = settings.url ? settings.url.toString() : false,
                                method = settings.method ? settings.method.toUpperCase() : 'GET',
                                callback = settings.callback ? settings.callback : false,
                                data = settings.data ? settings.data.toString() : '',
                                xhr_done = settings.xhr_done ? settings.xhr_done : null,
                                xhr;

                            // xhr in progress or url not provided -> exit
                            if ( !( (xhr_done == true || xhr_done == null)  && url ) ) return;

                            if ( typeof XMLHttpRequest !== 'undefined' )
                            {
                                xhr = new XMLHttpRequest();
                            }
                            else
                            {
                                try
                                {
                                    xhr =   new XMLHttpRequest("MSXML2.XmlHttp.5.0") || new XMLHttpRequest("MSXML2.XmlHttp.4.0") ||
                                            new XMLHttpRequest("MSXML2.XmlHttp.3.0") || new XMLHttpRequest("MSXML2.XmlHttp.2.0") ||
                                            new XMLHttpRequest("Microsoft.XmlHttp");

                                } catch ( e ) {}
                            }

                            // if xhr object does not supported or url not given, exit

                            xhr.onreadystatechange = function () {
                                if ( xhr.readyState != 4 ) return;

                                if ( xhr_done != null ) xhr_done = true;
                                callback ? callback( xhr ) : null;
                            }

                            xhr.open( method, url, async );

                            if ( method === 'POST' ) {
                                xhr.setRequestHeader( "Content-type", "application/x-www-form-urlencoded" );
                                xhr.send( data );
                            } else {
                                xhr.send( null );
                            }

                            if ( xhr_done != null ) xhr_done = false;
                        };
                    })();
                </script><div style="display:none"><script type="text/javascript">
var _qevents = _qevents || [];
(function() {
var elem = document.createElement('script');
elem.src = (document.location.protocol == "https:" ? "https://secure" : "http://edge") + ".quantserve.com/quant.js";
elem.async = true;
elem.type = "text/javascript";
var scpt = document.getElementsByTagName('script')[0];
scpt.parentNode.insertBefore(elem, scpt);
})();
_qevents.push({
qacct:"p-0cfM8Oh7M9bVQ"
});
</script>
<noscript>
<img src="//pixel.quantserve.com/pixel/p-0cfM8Oh7M9bVQ.gif" border="0" height="1" width="1" alt=""/>
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