# s2member/trunk/src/includes/classes/systematics-sp.inc.php

s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions, version trunk. 130 lines.

- Page: https://pluginprobe.com/plugins/s2member/trunk/code/src/includes/classes/systematics-sp.inc.php
- Raw: https://pluginprobe.com/plugins/s2member/trunk/raw/src/includes/classes/systematics-sp.inc.php
- Modified: 2016-11-29T22:22:10+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/s2member/trunk/code/src/includes/classes/systematics-sp.inc.php#L10-L20`.

```php
<?php
// @codingStandardsIgnoreFile
/**
 * Systematics *(for a specific page)*.
 *
 * Copyright: © 2009-2011
 * {@link http://websharks-inc.com/ WebSharks, Inc.}
 * (coded in the USA)
 *
 * Released under the terms of the GNU General Public License.
 * You should have received a copy of the GNU General Public License,
 * along with this software. In the main directory, see: /licensing/
 * If not, see: {@link http://www.gnu.org/licenses/}.
 *
 * @package s2Member\Systematics
 * @since 3.5
 */
if(!defined('WPINC')) // MUST have WordPress.
	exit('Do not access this file directly.');

if(!class_exists('c_ws_plugin__s2member_systematics_sp'))
{
	/**
	 * Systematics *(for a specific page)*.
	 *
	 * @package s2Member\Systematics
	 * @since 3.5
	 */
	class c_ws_plugin__s2member_systematics_sp
	{
		/**
		 * Determines if a specific Post/Page ID, or URI, is s2Member Systematic.
		 *
		 * @package s2Member\Systematics
		 * @since 111115
		 *
		 * @param int|string $singular_id Optional. A numeric Post/Page ID in WordPress.
		 * @param string     $uri Optional. A request URI to test against.
		 *
		 * @return bool True if s2Member Systematic, else false.
		 */
		public static function is_s2_systematic_use_specific_page($singular_id = '', $uri = '')
		{
			$ci          = $GLOBALS['WS_PLUGIN__']['s2member']['o']['ruris_case_sensitive'] ? '' : 'i';
			$singular_id = ($singular_id && is_numeric($singular_id)) ? (int)$singular_id : FALSE; // Force types.
			$uri         = ($uri && is_string($uri) && ($uri = c_ws_plugin__s2member_utils_urls::parse_uri($uri))) ? $uri : FALSE;

			if($uri && ($_q = c_ws_plugin__s2member_utils_urls::parse_url($uri, PHP_URL_QUERY)) && preg_match('/[\?&]s2member/'.$ci, $_q) && c_ws_plugin__s2member_utils_conds::is_site_root($uri))
				return ($is_s2_systematic = apply_filters('ws_plugin__s2member_is_s2_systematic_use_specific_page', TRUE, get_defined_vars()));

			return ($is_s2_systematic = apply_filters('ws_plugin__s2member_is_s2_systematic_use_specific_page', FALSE, get_defined_vars()));
		}

		/**
		 * Determines if a specific Post/Page ID, or URI, is WordPress Systematic.
		 *
		 * @package s2Member\Systematics
		 * @since 111002
		 *
		 * @param int|string $singular_id Optional. A numeric Post/Page ID in WordPress.
		 * @param string     $uri Optional. A request URI to test against.
		 *
		 * @return bool True if WordPress Systematic, else false.
		 */
		public static function is_wp_systematic_use_specific_page($singular_id = '', $uri = '')
		{
			$ci          = $GLOBALS['WS_PLUGIN__']['s2member']['o']['ruris_case_sensitive'] ? '' : 'i';
			$singular_id = ($singular_id && is_numeric($singular_id)) ? (int)$singular_id : FALSE; // Force types.
			$uri         = ($uri && is_string($uri) && ($uri = c_ws_plugin__s2member_utils_urls::parse_uri($uri))) ? $uri : FALSE;

			if($uri && preg_match('/\/wp-admin(?:\/|\?|$)/'.$ci, $uri)) // Inside a WordPress administrative area?
				return ($is_wp_systematic = apply_filters('ws_plugin__s2member_is_wp_systematic_use_specific_page', TRUE, get_defined_vars()));

			if($uri && preg_match('/^\/(?:wp-.+?|xmlrpc)\.php$/'.$ci, c_ws_plugin__s2member_utils_urls::parse_url($uri, PHP_URL_PATH)))
				return ($is_wp_systematic = apply_filters('ws_plugin__s2member_is_wp_systematic_use_specific_page', TRUE, get_defined_vars()));

			return ($is_wp_systematic = apply_filters('ws_plugin__s2member_is_wp_systematic_use_specific_page', FALSE, get_defined_vars()));
		}

		/**
		 * Determines if a specific Post/Page ID, or URI, is Systematic in any way.
		 *
		 * @package s2Member\Systematics
		 * @since 3.5
		 *
		 * @param int|string $singular_id Optional. A numeric Post/Page ID in WordPress.
		 * @param string     $uri Optional. A request URI to test against.
		 *
		 * @return bool True if Systematic, else false.
		 *
		 * @todo Test URIs against formulated links for Systematic Pages like the Membership Options Page?
		 *   Don't think this is required though; as it's already handled in other areas, correct?
		 */
		public static function is_systematic_use_specific_page($singular_id = '', $uri = '')
		{
			global $bp; // If BuddyPress is installed, we'll need this global reference.

			$ci          = $GLOBALS['WS_PLUGIN__']['s2member']['o']['ruris_case_sensitive'] ? '' : 'i';
			$singular_id = ($singular_id && is_numeric($singular_id)) ? (int)$singular_id : FALSE; // Force types.
			$uri         = ($uri && is_string($uri) && ($uri = c_ws_plugin__s2member_utils_urls::parse_uri($uri))) ? $uri : FALSE;

			if(c_ws_plugin__s2member_systematics_sp::is_s2_systematic_use_specific_page($singular_id, $uri))
				return ($is_systematic = apply_filters('ws_plugin__s2member_is_systematic_use_specific_page', TRUE, get_defined_vars()));

			if(c_ws_plugin__s2member_systematics_sp::is_wp_systematic_use_specific_page($singular_id, $uri))
				return ($is_systematic = apply_filters('ws_plugin__s2member_is_systematic_use_specific_page', TRUE, get_defined_vars()));

			if($uri && c_ws_plugin__s2member_utils_conds::bp_is_installed() && preg_match('/\/(?:'.preg_quote(trim(((function_exists('bp_get_signup_slug')) ? bp_get_signup_slug() : BP_REGISTER_SLUG), '/'), '/').'|'.preg_quote(trim(((function_exists('bp_get_activate_slug')) ? bp_get_activate_slug() : BP_ACTIVATION_SLUG), '/'), '/').')(?:\/|\?|$)/'.$ci, $uri))
				return ($is_systematic = apply_filters('ws_plugin__s2member_is_systematic_use_specific_page', TRUE, get_defined_vars()));

			if($singular_id && c_ws_plugin__s2member_utils_conds::bp_is_installed() && ((!empty($bp->pages->register->id) && $singular_id === (int)$bp->pages->register->id) || (!empty($bp->pages->activate->id) && $singular_id === (int)$bp->pages->activate->id)))
				return ($is_systematic = apply_filters('ws_plugin__s2member_is_systematic_use_specific_page', TRUE, get_defined_vars()));

			if($singular_id && $GLOBALS['WS_PLUGIN__']['s2member']['o']['login_welcome_page'] && $singular_id === (int)$GLOBALS['WS_PLUGIN__']['s2member']['o']['login_welcome_page'])
				return ($is_systematic = apply_filters('ws_plugin__s2member_is_systematic_use_specific_page', TRUE, get_defined_vars()));

			if($singular_id && $GLOBALS['WS_PLUGIN__']['s2member']['o']['membership_options_page'] && $singular_id === (int)$GLOBALS['WS_PLUGIN__']['s2member']['o']['membership_options_page'])
				return ($is_systematic = apply_filters('ws_plugin__s2member_is_systematic_use_specific_page', TRUE, get_defined_vars()));

			if($singular_id && $GLOBALS['WS_PLUGIN__']['s2member']['o']['file_download_limit_exceeded_page'] && $singular_id === (int)$GLOBALS['WS_PLUGIN__']['s2member']['o']['file_download_limit_exceeded_page'])
				return ($is_systematic = apply_filters('ws_plugin__s2member_is_systematic_use_specific_page', TRUE, get_defined_vars()));

			if($uri && $GLOBALS['WS_PLUGIN__']['s2member']['o']['login_redirection_override'] && ($_lro = c_ws_plugin__s2member_login_redirects::login_redirection_uri(NULL, 'root-returns-false')) && preg_match('/^'.preg_quote($_lro, '/').'$/'.$ci, $uri))
				return ($is_systematic = apply_filters('ws_plugin__s2member_is_systematic_use_specific_page', TRUE, get_defined_vars()));

			return ($is_systematic = apply_filters('ws_plugin__s2member_is_systematic_use_specific_page', FALSE, get_defined_vars()));
		}
	}
}

```