4 * This file defines some global constants and includes the central App class.
10 * Friendica is a communications platform for integrated social communications
11 * utilising decentralised communications and linkage to several indie social
12 * projects - as well as popular mainstream providers.
14 * Our mission is to free our friends and families from the clutches of
15 * data-harvesting corporations, and pave the way to a future where social
16 * communications are free and open and flow between alternate providers as
17 * easily as email does today.
21 use Friendica\BaseObject;
22 use Friendica\Core\Config;
23 use Friendica\Core\PConfig;
24 use Friendica\Core\Protocol;
25 use Friendica\Core\System;
26 use Friendica\Database\DBA;
27 use Friendica\Model\Contact;
28 use Friendica\Model\Term;
29 use Friendica\Util\BasePath;
30 use Friendica\Util\DateTimeFormat;
32 define('FRIENDICA_PLATFORM', 'Friendica');
33 define('FRIENDICA_CODENAME', 'The Tazmans Flax-lily');
34 define('FRIENDICA_VERSION', '2019.03-rc');
35 define('DFRN_PROTOCOL_VERSION', '2.23');
36 define('NEW_UPDATE_ROUTINE_VERSION', 1170);
39 * @brief Constant with a HTML line break.
41 * Contains a HTML line break (br) element and a real carriage return with line
42 * feed for the source.
43 * This can be used in HTML and JavaScript where needed a line break.
45 define('EOL', "<br />\r\n");
48 * @brief Image storage quality.
50 * Lower numbers save space at cost of image detail.
51 * For ease of upgrade, please do not change here. Set system.jpegquality = n in config/local.config.php,
52 * where n is between 1 and 100, and with very poor results below about 50
54 define('JPEG_QUALITY', 100);
57 * system.png_quality = n where is between 0 (uncompressed) to 9
59 define('PNG_QUALITY', 8);
62 * An alternate way of limiting picture upload sizes. Specify the maximum pixel
63 * length that pictures are allowed to be (for non-square pictures, it will apply
64 * to the longest side). Pictures longer than this length will be resized to be
65 * this length (on the longest side, the other side will be scaled appropriately).
66 * Modify this value using
69 * 'max_image_length' => 'n',
73 * in config/local.config.php
75 * If you don't want to set a maximum length, set to -1. The default value is
76 * defined by 'MAX_IMAGE_LENGTH' below.
78 define('MAX_IMAGE_LENGTH', -1);
83 define('DEFAULT_DB_ENGINE', 'InnoDB');
88 * SSL redirection policies
91 define('SSL_POLICY_NONE', 0);
92 define('SSL_POLICY_FULL', 1);
93 define('SSL_POLICY_SELFSIGN', 2);
96 /** @deprecated since version 2019.03, please use \Friendica\Module\Register::CLOSED instead */
97 define('REGISTER_CLOSED', \Friendica\Module\Register::CLOSED);
98 /** @deprecated since version 2019.03, please use \Friendica\Module\Register::APPROVE instead */
99 define('REGISTER_APPROVE', \Friendica\Module\Register::APPROVE);
100 /** @deprecated since version 2019.03, please use \Friendica\Module\Register::OPEN instead */
101 define('REGISTER_OPEN', \Friendica\Module\Register::OPEN);
106 * Type of the community page
109 define('CP_NO_INTERNAL_COMMUNITY', -2);
110 define('CP_NO_COMMUNITY_PAGE', -1);
111 define('CP_USERS_ON_SERVER', 0);
112 define('CP_GLOBAL_COMMUNITY', 1);
113 define('CP_USERS_AND_GLOBAL', 2);
119 * These numbers are used in stored permissions
120 * and existing allocations MUST NEVER BE CHANGED
121 * OR RE-ASSIGNED! You may only add to them.
124 Protocol::DFRN => (-1),
125 Protocol::ZOT => (-2),
126 Protocol::OSTATUS => (-3),
127 Protocol::FEED => (-4),
128 Protocol::DIASPORA => (-5),
129 Protocol::MAIL => (-6),
130 Protocol::FACEBOOK => (-8),
131 Protocol::LINKEDIN => (-9),
132 Protocol::XMPP => (-10),
133 Protocol::MYSPACE => (-11),
134 Protocol::GPLUS => (-12),
135 Protocol::PUMPIO => (-13),
136 Protocol::TWITTER => (-14),
137 Protocol::DIASPORA2 => (-15),
138 Protocol::STATUSNET => (-16),
139 Protocol::NEWS => (-18),
140 Protocol::ICALENDAR => (-19),
141 Protocol::PNUT => (-20),
143 Protocol::PHANTOM => (-127),
147 * Maximum number of "people who like (or don't like) this" that we will list by name
149 define('MAX_LIKERS', 75);
154 * Email notification options
157 define('NOTIFY_INTRO', 1);
158 define('NOTIFY_CONFIRM', 2);
159 define('NOTIFY_WALL', 4);
160 define('NOTIFY_COMMENT', 8);
161 define('NOTIFY_MAIL', 16);
162 define('NOTIFY_SUGGEST', 32);
163 define('NOTIFY_PROFILE', 64);
164 define('NOTIFY_TAGSELF', 128);
165 define('NOTIFY_TAGSHARE', 256);
166 define('NOTIFY_POKE', 512);
167 define('NOTIFY_SHARE', 1024);
169 define('SYSTEM_EMAIL', 16384);
171 define('NOTIFY_SYSTEM', 32768);
175 /** @deprecated since 2019.03, use Term::UNKNOWN instead */
176 define('TERM_UNKNOWN', Term::UNKNOWN);
177 /** @deprecated since 2019.03, use Term::HASHTAG instead */
178 define('TERM_HASHTAG', Term::HASHTAG);
179 /** @deprecated since 2019.03, use Term::MENTION instead */
180 define('TERM_MENTION', Term::MENTION);
181 /** @deprecated since 2019.03, use Term::CATEGORY instead */
182 define('TERM_CATEGORY', Term::CATEGORY);
183 /** @deprecated since 2019.03, use Term::PCATEGORY instead */
184 define('TERM_PCATEGORY', Term::PCATEGORY);
185 /** @deprecated since 2019.03, use Term::FILE instead */
186 define('TERM_FILE', Term::FILE);
187 /** @deprecated since 2019.03, use Term::SAVEDSEARCH instead */
188 define('TERM_SAVEDSEARCH', Term::SAVEDSEARCH);
189 /** @deprecated since 2019.03, use Term::CONVERSATION instead */
190 define('TERM_CONVERSATION', Term::CONVERSATION);
192 /** @deprecated since 2019.03, use Term::OBJECT_TYPE_POST instead */
193 define('TERM_OBJ_POST', Term::OBJECT_TYPE_POST);
194 /** @deprecated since 2019.03, use Term::OBJECT_TYPE_PHOTO instead */
195 define('TERM_OBJ_PHOTO', Term::OBJECT_TYPE_PHOTO);
200 * Various namespaces we may need to parse
203 define('NAMESPACE_ZOT', 'http://purl.org/zot');
204 define('NAMESPACE_DFRN', 'http://purl.org/macgirvin/dfrn/1.0');
205 define('NAMESPACE_THREAD', 'http://purl.org/syndication/thread/1.0');
206 define('NAMESPACE_TOMB', 'http://purl.org/atompub/tombstones/1.0');
207 define('NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/');
208 define('NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/');
209 define('NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia');
210 define('NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env');
211 define('NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe');
212 define('NAMESPACE_GEORSS', 'http://www.georss.org/georss');
213 define('NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0');
214 define('NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from');
215 define('NAMESPACE_OSTATUS', 'http://ostatus.org/schema/1.0');
216 define('NAMESPACE_STATUSNET', 'http://status.net/schema/api/1/');
217 define('NAMESPACE_ATOM1', 'http://www.w3.org/2005/Atom');
218 define('NAMESPACE_MASTODON', 'http://mastodon.social/schema/1.0');
224 * Activity stream defines
227 define('ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like');
228 define('ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike');
229 define('ACTIVITY_ATTEND', NAMESPACE_ZOT . '/activity/attendyes');
230 define('ACTIVITY_ATTENDNO', NAMESPACE_ZOT . '/activity/attendno');
231 define('ACTIVITY_ATTENDMAYBE', NAMESPACE_ZOT . '/activity/attendmaybe');
233 define('ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart');
235 define('ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend');
236 define('ACTIVITY_REQ_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'request-friend');
237 define('ACTIVITY_UNFRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend');
238 define('ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow');
239 define('ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following');
240 define('ACTIVITY_JOIN', NAMESPACE_ACTIVITY_SCHEMA . 'join');
242 define('ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post');
243 define('ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update');
244 define('ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag');
245 define('ACTIVITY_FAVORITE', NAMESPACE_ACTIVITY_SCHEMA . 'favorite');
246 define('ACTIVITY_UNFAVORITE', NAMESPACE_ACTIVITY_SCHEMA . 'unfavorite');
247 define('ACTIVITY_SHARE', NAMESPACE_ACTIVITY_SCHEMA . 'share');
248 define('ACTIVITY_DELETE', NAMESPACE_ACTIVITY_SCHEMA . 'delete');
250 define('ACTIVITY_POKE', NAMESPACE_ZOT . '/activity/poke');
252 define('ACTIVITY_OBJ_BOOKMARK', NAMESPACE_ACTIVITY_SCHEMA . 'bookmark');
253 define('ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment');
254 define('ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note');
255 define('ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person');
256 define('ACTIVITY_OBJ_IMAGE', NAMESPACE_ACTIVITY_SCHEMA . 'image');
257 define('ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo');
258 define('ACTIVITY_OBJ_VIDEO', NAMESPACE_ACTIVITY_SCHEMA . 'video');
259 define('ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo');
260 define('ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album');
261 define('ACTIVITY_OBJ_EVENT', NAMESPACE_ACTIVITY_SCHEMA . 'event');
262 define('ACTIVITY_OBJ_GROUP', NAMESPACE_ACTIVITY_SCHEMA . 'group');
263 define('ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN . '/tagterm');
264 define('ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN . '/profile');
265 define('ACTIVITY_OBJ_QUESTION', 'http://activityschema.org/object/question');
271 * Item weight for query ordering
274 define('GRAVITY_PARENT', 0);
275 define('GRAVITY_ACTIVITY', 3);
276 define('GRAVITY_COMMENT', 6);
277 define('GRAVITY_UNKNOWN', 9);
283 * Process priority for the worker
286 define('PRIORITY_UNDEFINED', 0);
287 define('PRIORITY_CRITICAL', 10);
288 define('PRIORITY_HIGH', 20);
289 define('PRIORITY_MEDIUM', 30);
290 define('PRIORITY_LOW', 40);
291 define('PRIORITY_NEGLIGIBLE', 50);
295 * @name Social Relay settings
297 * See here: https://github.com/jaywink/social-relay
298 * and here: https://wiki.diasporafoundation.org/Relay_servers_for_public_posts
301 define('SR_SCOPE_NONE', '');
302 define('SR_SCOPE_ALL', 'all');
303 define('SR_SCOPE_TAGS', 'tags');
306 // Normally this constant is defined - but not if "pcntl" isn't installed
307 if (!defined("SIGTERM")) {
308 define("SIGTERM", 15);
312 * Depending on the PHP version this constant does exist - or not.
313 * See here: http://php.net/manual/en/curl.constants.php#117928
315 if (!defined('CURLE_OPERATION_TIMEDOUT')) {
316 define('CURLE_OPERATION_TIMEDOUT', CURLE_OPERATION_TIMEOUTED);
320 * @brief Retrieve the App structure
322 * Useful in functions which require it but don't get it passed to them
324 * @deprecated since version 2018.09
325 * @see BaseObject::getApp()
330 return BaseObject::getApp();
334 * Return the provided variable value if it exists and is truthy or the provided
335 * default value instead.
337 * Works with initialized variables and potentially uninitialized array keys
340 * - defaults($var, $default)
341 * - defaults($array, 'key', $default)
344 * @brief Returns a defaut value if the provided variable or array key is falsy
347 function defaults(...$args)
349 if (count($args) < 2) {
350 throw new BadFunctionCallException('defaults() requires at least 2 parameters');
352 if (count($args) > 3) {
353 throw new BadFunctionCallException('defaults() cannot use more than 3 parameters');
355 if (count($args) === 3 && is_null($args[1])) {
356 throw new BadFunctionCallException('defaults($arr, $key, $def) $key is null');
359 // The default value always is the last argument
360 $return = array_pop($args);
362 if (count($args) == 2 && is_array($args[0]) && !empty($args[0][$args[1]])) {
363 $return = $args[0][$args[1]];
366 if (count($args) == 1 && !empty($args[0])) {
374 * @brief Used to end the current process, after saving session state.
383 * @brief Returns the user id of locally logged in user or false.
385 * @return int|bool user id or false
387 function local_user()
389 if (!empty($_SESSION['authenticated']) && !empty($_SESSION['uid'])) {
390 return intval($_SESSION['uid']);
396 * @brief Returns the public contact id of logged in user or false.
398 * @return int|bool public contact id or false
400 function public_contact()
402 static $public_contact_id = false;
404 if (!$public_contact_id && !empty($_SESSION['authenticated'])) {
405 if (!empty($_SESSION['my_address'])) {
407 $public_contact_id = intval(Contact::getIdForURL($_SESSION['my_address'], 0, true));
408 } elseif (!empty($_SESSION['visitor_home'])) {
410 $public_contact_id = intval(Contact::getIdForURL($_SESSION['visitor_home'], 0, true));
412 } elseif (empty($_SESSION['authenticated'])) {
413 $public_contact_id = false;
416 return $public_contact_id;
420 * @brief Returns contact id of authenticated site visitor or false
422 * @return int|bool visitor_id or false
424 function remote_user()
426 // You cannot be both local and remote.
427 // Unncommented by rabuzarus because remote authentication to local
428 // profiles wasn't possible anymore (2018-04-12).
429 // if (local_user()) {
433 if (empty($_SESSION)) {
437 if (!empty($_SESSION['authenticated']) && !empty($_SESSION['visitor_id'])) {
438 return intval($_SESSION['visitor_id']);
444 * @brief Show an error message to user.
446 * This function save text in session, to be shown to the user at next page load
448 * @param string $s - Text of notice
452 if (empty($_SESSION)) {
457 if (empty($_SESSION['sysmsg'])) {
458 $_SESSION['sysmsg'] = [];
460 if ($a->interactive) {
461 $_SESSION['sysmsg'][] = $s;
466 * @brief Show an info message to user.
468 * This function save text in session, to be shown to the user at next page load
470 * @param string $s - Text of notice
476 if (local_user() && PConfig::get(local_user(), 'system', 'ignore_info')) {
480 if (empty($_SESSION['sysmsg_info'])) {
481 $_SESSION['sysmsg_info'] = [];
483 if ($a->interactive) {
484 $_SESSION['sysmsg_info'][] = $s;
488 function feed_birthday($uid, $tz)
491 * Determine the next birthday, but only if the birthday is published
492 * in the default profile. We _could_ also look for a private profile that the
493 * recipient can see, but somebody could get mad at us if they start getting
494 * public birthday greetings when they haven't made this info public.
496 * Assuming we are able to publish this info, we are then going to convert
497 * the start time from the owner's timezone to UTC.
499 * This will potentially solve the problem found with some social networks
500 * where birthdays are converted to the viewer's timezone and salutations from
501 * elsewhere in the world show up on the wrong day. We will convert it to the
502 * viewer's timezone also, but first we are going to convert it from the birthday
503 * person's timezone to GMT - so the viewer may find the birthday starting at
504 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
512 $profile = DBA::selectFirst('profile', ['dob'], ['is-default' => true, 'uid' => $uid]);
513 if (DBA::isResult($profile)) {
514 $tmp_dob = substr($profile['dob'], 5);
515 if (intval($tmp_dob)) {
516 $y = DateTimeFormat::timezoneNow($tz, 'Y');
517 $bd = $y . '-' . $tmp_dob . ' 00:00';
518 $t_dob = strtotime($bd);
519 $now = strtotime(DateTimeFormat::timezoneNow($tz));
521 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
523 $birthday = DateTimeFormat::convert($bd, 'UTC', $tz, DateTimeFormat::ATOM);
531 * @brief Check if current user has admin role.
533 * @return bool true if user is an admin
535 function is_site_admin()
539 $admin_email = Config::get('config', 'admin_email');
541 $adminlist = explode(',', str_replace(' ', '', $admin_email));
543 return local_user() && $admin_email && in_array(defaults($a->user, 'email', ''), $adminlist);
547 * @brief Returns querystring as string from a mapped array.
549 * @param array $params mapped array with query parameters
550 * @param string $name of parameter, default null
554 function build_querystring($params, $name = null)
557 foreach ($params as $key => $val) {
558 if (is_array($val)) {
559 /// @TODO maybe not compare against null, use is_null()
561 $ret .= build_querystring($val, $key);
563 $ret .= build_querystring($val, $name . "[$key]");
566 $val = urlencode($val);
567 /// @TODO maybe not compare against null, use is_null()
569 /// @TODO two string concated, can be merged to one
570 $ret .= $name . "[$key]" . "=$val&";
572 $ret .= "$key=$val&";
579 function explode_querystring($query)
581 $arg_st = strpos($query, '?');
582 if ($arg_st !== false) {
583 $base = substr($query, 0, $arg_st);
590 $args = explode('&', substr($query, $arg_st));
591 foreach ($args as $k => $arg) {
592 /// @TODO really compare type-safe here?
597 $args = array_values($args);
602 $args = array_values($args);
612 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
614 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
616 function curPageURL()
619 if (!empty($_SERVER["HTTPS"]) && ($_SERVER["HTTPS"] == "on")) {
625 if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
626 $pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];
628 $pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
633 function get_server()
635 $server = Config::get("system", "directory");
638 $server = "https://dir.friendica.social";
644 function get_temppath()
648 $temppath = Config::get("system", "temppath");
650 if (($temppath != "") && System::isDirectoryUsable($temppath)) {
651 // We have a temp path and it is usable
652 return BasePath::getRealPath($temppath);
655 // We don't have a working preconfigured temp path, so we take the system path.
656 $temppath = sys_get_temp_dir();
658 // Check if it is usable
659 if (($temppath != "") && System::isDirectoryUsable($temppath)) {
660 // Always store the real path, not the path through symlinks
661 $temppath = BasePath::getRealPath($temppath);
663 // To avoid any interferences with other systems we create our own directory
664 $new_temppath = $temppath . "/" . $a->getHostName();
665 if (!is_dir($new_temppath)) {
666 /// @TODO There is a mkdir()+chmod() upwards, maybe generalize this (+ configurable) into a function/method?
667 mkdir($new_temppath);
670 if (System::isDirectoryUsable($new_temppath)) {
671 // The new path is usable, we are happy
672 Config::set("system", "temppath", $new_temppath);
673 return $new_temppath;
675 // We can't create a subdirectory, strange.
676 // But the directory seems to work, so we use it but don't store it.
681 // Reaching this point means that the operating system is configured badly.
685 function get_cachefile($file, $writemode = true)
687 $cache = get_itemcachepath();
689 if ((!$cache) || (!is_dir($cache))) {
693 $subfolder = $cache . "/" . substr($file, 0, 2);
695 $cachepath = $subfolder . "/" . $file;
698 if (!is_dir($subfolder)) {
700 chmod($subfolder, 0777);
707 function clear_cache($basepath = "", $path = "")
710 $basepath = get_itemcachepath();
714 if (($path == "") || (!is_dir($path))) {
718 if (substr(realpath($path), 0, strlen($basepath)) != $basepath) {
722 $cachetime = (int) Config::get('system', 'itemcache_duration');
723 if ($cachetime == 0) {
727 if (is_writable($path)) {
728 if ($dh = opendir($path)) {
729 while (($file = readdir($dh)) !== false) {
730 $fullpath = $path . "/" . $file;
731 if ((filetype($fullpath) == "dir") && ($file != ".") && ($file != "..")) {
732 clear_cache($basepath, $fullpath);
734 if ((filetype($fullpath) == "file") && (filectime($fullpath) < (time() - $cachetime))) {
743 function get_itemcachepath()
745 // Checking, if the cache is deactivated
746 $cachetime = (int) Config::get('system', 'itemcache_duration');
747 if ($cachetime < 0) {
751 $itemcache = Config::get('system', 'itemcache');
752 if (($itemcache != "") && System::isDirectoryUsable($itemcache)) {
753 return BasePath::getRealPath($itemcache);
756 $temppath = get_temppath();
758 if ($temppath != "") {
759 $itemcache = $temppath . "/itemcache";
760 if (!file_exists($itemcache) && !is_dir($itemcache)) {
764 if (System::isDirectoryUsable($itemcache)) {
765 Config::set("system", "itemcache", $itemcache);
773 * @brief Returns the path where spool files are stored
775 * @return string Spool path
777 function get_spoolpath()
779 $spoolpath = Config::get('system', 'spoolpath');
780 if (($spoolpath != "") && System::isDirectoryUsable($spoolpath)) {
781 // We have a spool path and it is usable
785 // We don't have a working preconfigured spool path, so we take the temp path.
786 $temppath = get_temppath();
788 if ($temppath != "") {
789 // To avoid any interferences with other systems we create our own directory
790 $spoolpath = $temppath . "/spool";
791 if (!is_dir($spoolpath)) {
795 if (System::isDirectoryUsable($spoolpath)) {
796 // The new path is usable, we are happy
797 Config::set("system", "spoolpath", $spoolpath);
800 // We can't create a subdirectory, strange.
801 // But the directory seems to work, so we use it but don't store it.
806 // Reaching this point means that the operating system is configured badly.
810 if (!function_exists('exif_imagetype')) {
811 function exif_imagetype($file)
813 $size = getimagesize($file);
818 function validate_include(&$file)
822 $file = realpath($file);
824 if (strpos($file, getcwd()) !== 0) {
828 $file = str_replace(getcwd() . "/", "", $file, $count);
833 if ($orig_file !== $file) {
838 if (strpos($file, "include/") === 0) {
842 if (strpos($file, "addon/") === 0) {
846 // Simply return flag
851 * PHP 5 compatible dirname() with count parameter
853 * @see http://php.net/manual/en/function.dirname.php#113193
855 * @deprecated with PHP 7
856 * @param string $path
860 function rdirname($path, $levels = 1)
863 return dirname(rdirname($path, --$levels));
865 return dirname($path);