| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  * Admin Page Framework | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * http://admin-page-framework.michaeluno.jp/ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * Copyright (c) 2013-2021, Michael Uno; Licensed MIT | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * Provides utility methods which use WordPress functions and classes. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * The methods in this class mainly deal with determining the type of loading page such as a post type, url base name etc. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * @since       2.0.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * @extends     AdminPageFramework_Utility | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * @package     AdminPageFramework/Utility | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * @internal | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | class AdminPageFramework_WPUtility_Page extends AdminPageFramework_WPUtility_HTML { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |      * Attempts to retrieve the current admin post type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |      * @remark      Caches the result. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |      * @since       3.0.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |      * @return      string|null     The found post type slug. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |     static public function getCurrentPostType() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |         if ( isset( self::$_sCurrentPostType ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |             return self::$_sCurrentPostType; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |         self::$_sCurrentPostType = self::_getCurrentPostType(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |         return self::$_sCurrentPostType; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |         /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |          * Since the current page will be the same throughout the execution of the script, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |          * once it's found, there is no need to find it again. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |          */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |         static private $_sCurrentPostType; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |         /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |          * Attempts to retrieve the current admin post type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |          * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |          * @remark      Does not cache the result. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |          * @since       3.5.3 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |          * @return      string|null     The found post type or null if not found. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |          */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |         static private function _getCurrentPostType() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |             // the array element order is important, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |             // the one listed fist will be tried first. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |             $_aMethodsToTry = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |                 'getPostTypeByTypeNow', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |                 'getPostTypeByScreenObject', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |                 'getPostTypeByREQUEST', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |                 'getPostTypeByPostObject',  // 3.6.0+ Moved to the last as it is not reliable. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |             ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |             foreach ( $_aMethodsToTry as $_sMethodName ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |                 $_sPostType = call_user_func( array( __CLASS__, $_sMethodName ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |                 if ( $_sPostType ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |                     return $_sPostType; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |             return null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |             /**#@+ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |              * Attempts to find a current post type. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |              * @internal | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |              * @return      null|string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |              * @callback    function        call_user_func | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |              * @since       3.5.3 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |              */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |             static public function getPostTypeByTypeNow() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |                 if ( isset( $GLOBALS[ 'typenow' ] ) && $GLOBALS[ 'typenow' ] ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |                     return $GLOBALS[ 'typenow' ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |             static public function getPostTypeByScreenObject() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |                 if ( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |                     isset( $GLOBALS[ 'current_screen' ]->post_type ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |                     && $GLOBALS[ 'current_screen' ]->post_type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |                 ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |                     return $GLOBALS[ 'current_screen' ]->post_type; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |             /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |              * Tries to find the post type from the URL query for type. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |              */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |             static public function getPostTypeByREQUEST() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |                 if ( isset( $_REQUEST[ 'post_type' ] ) ) {  // sanitization unnecessary | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |                     return sanitize_key( sanitize_text_field( $_REQUEST[ 'post_type' ] ) ); // sanitization done | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |                 if ( isset( $_GET[ 'post' ] ) && $_GET[ 'post' ] ) {    // sanitization unnecessary | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |                     // It will perform a database query. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |                     return get_post_type( absint( self::getHTTPQueryGET( 'post', 0 ) ) );  // sanitization done | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |             /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |              * @remark      Checking with the global post object is not reliable because it gets modified when the `WP_Query::the_post()` method is performed. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |              */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |             static public function getPostTypeByPostObject() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |                 if ( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |                     isset( $GLOBALS[ 'post' ]->post_type ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |                     && $GLOBALS[ 'post' ]->post_type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |                 ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |                     return $GLOBALS[ 'post' ]->post_type; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |             /**#@-*/ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |      * Checks if the current page is a custom taxonomy of the give post types. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |      * @since       3.1.3 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |      * @param       array|string        The post type slug(s) to check. If this is empty, the method just checks the current page is a taxonomy page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |      * @return      boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |     static public function isCustomTaxonomyPage( $asPostTypes=array() ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |         if ( ! in_array( self::getPageNow(), array( 'tags.php', 'edit-tags.php', 'term.php' ) ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |         return self::isCurrentPostTypeIn( $asPostTypes ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |      * Checks if the current page is a post editing page that belongs to the given post type(s). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |      * @since       3.0.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |      * @param       array|string        The post type slug(s) to check. If this is empty, the method just checks the current page is a post definition page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |      * Otherwise, it will check if the page belongs to the given post type(s). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |      * @return      boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |     static public function isPostDefinitionPage( $asPostTypes=array() ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |         // If it's not the post definition page, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |         if ( ! in_array( self::getPageNow(), array( 'post.php', 'post-new.php', ) ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |         return self::isCurrentPostTypeIn( $asPostTypes ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |      * Checks if the curently loading page's post type is of the given post types. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |      * @param       array|string        $asPostTypes        The post type slugs that the current post type belongs to. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |      * @return      boolean             True if the current post type belongs to the given post types. If an empty value is passed to the first parameter, returns always true. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |      * @since       3.5.3 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |     static public function isCurrentPostTypeIn( $asPostTypes ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |         $_aPostTypes = self::getAsArray( $asPostTypes ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |         // If the parameter is empty, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |         if ( empty( $_aPostTypes ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |             return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |         // If the parameter of the post type is set and it's in the given post types, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |         return in_array( self::getCurrentPostType(), $_aPostTypes ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |      * Checks if the current page is in the post listing page of the given page slug(s). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |      * @since 3.0.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |     static public function isPostListingPage( $asPostTypes=array() ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |         if ( 'edit.php' != self::getPageNow() ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |         $_aPostTypes = self::getAsArray( $asPostTypes ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |         if ( ! isset( $_GET[ 'post_type' ] )  ) {   // sanitization unnecessary | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |             return in_array( 'post', $_aPostTypes, true ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |         return in_array( $_GET[ 'post_type' ], $_aPostTypes, true );    // sanitization unnecessary | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |      * Stores the cache of the pagenow value. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |     static private $_sPageNow; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |      * Returns the base name of the current url. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |      * When a plugin is network activated, the global $pagenow variable sometimes is not set. Some framework's objects rely on the value of it. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |      * So this method will provide an alternative mean when it is not set. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |      * @since       3.0.5 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |     static public function getPageNow() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |         // Use the cache, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |         if ( isset( self::$_sPageNow ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |             return self::$_sPageNow; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |         // If already set, use that. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |         if ( isset( $GLOBALS[ 'pagenow' ] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |             self::$_sPageNow = $GLOBALS[ 'pagenow' ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |             return self::$_sPageNow; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |         $_aMethodNames = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |             0 => '_getPageNow_FrontEnd', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |             1 => '_getPageNow_BackEnd', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |         $_sMethodName  = $_aMethodNames[ ( integer ) is_admin() ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |         self::$_sPageNow = self::$_sMethodName(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |         return self::$_sPageNow; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |         /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |          * Returns the current page url base name. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |          * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |          * Assumes the current page is not in the admin area. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |          * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |          * @since       3.5.3 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |          * @return      string      The current page url base name. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |          */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |         static private function _getPageNow_FrontEnd() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |             if ( preg_match( '#([^/]+\.php)([?/].*?)?$#i', $_SERVER[ 'PHP_SELF' ], $_aMatches ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |                 return strtolower( $_aMatches[ 1 ] ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |             return 'index.php'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  |         /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  |          * Returns the current page url base name of the admin page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  |          * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  |          * Assumes the current page is in the admin area. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  |          * @remark      In admin area, it is checked carefully than in the fron-end. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  |          * @since       3.5.3 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  |          * @return      string      The current page url base name of the admin page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  |          */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  |         static private function _getPageNow_BackEnd() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  |             $_sPageNow = self::_getPageNowAdminURLBasePath(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  |             if ( self::_isInAdminIndex( $_sPageNow ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |                 return 'index.php'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  |             preg_match( '#(.*?)(/|$)#', $_sPageNow, $_aMatches ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  |             $_sPageNow = strtolower( $_aMatches[ 1 ] ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  |             if ( '.php' !== substr( $_sPageNow, -4, 4 ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  |                 $_sPageNow .= '.php'; // for Options +Multiviews: /wp-admin/themes/index.php (themes.php is queried) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  |             return $_sPageNow; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  |             /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  |              * Return the base part of the currently loading admin url. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 |  |  |              * @since       3.5.3 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 266 |  |  |              * @internal | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  |              * return       string      The base part of the currently loading admin url. | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 268 |  |  |              */ | 
            
                                                                        
                            
            
                                    
            
            
                | 269 |  |  |             static private function _getPageNowAdminURLBasePath() { | 
            
                                                                        
                            
            
                                    
            
            
                | 270 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 271 |  |  |                 if ( is_network_admin() ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 272 |  |  |                     $_sNeedle = '#/wp-admin/network/?(.*?)$#i'; | 
            
                                                                        
                            
            
                                    
            
            
                | 273 |  |  |                 } | 
            
                                                                        
                            
            
                                    
            
            
                | 274 |  |  |                 else if ( is_user_admin() ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 275 |  |  |                     $_sNeedle = '#/wp-admin/user/?(.*?)$#i'; | 
            
                                                                        
                            
            
                                    
            
            
                | 276 |  |  |                 } | 
            
                                                                        
                            
            
                                    
            
            
                | 277 |  |  |                 else { | 
            
                                                                        
                            
            
                                    
            
            
                | 278 |  |  |                     $_sNeedle = '#/wp-admin/?(.*?)$#i'; | 
            
                                                                        
                            
            
                                    
            
            
                | 279 |  |  |                 } | 
            
                                                                        
                            
            
                                    
            
            
                | 280 |  |  |                 preg_match( $_sNeedle, $_SERVER[ 'PHP_SELF' ], $_aMatches ); | 
            
                                                                        
                            
            
                                    
            
            
                | 281 |  |  |                 return preg_replace( '#\?.*?$#', '', trim( $_aMatches[ 1 ], '/' ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 282 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 283 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 284 |  |  |             /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 285 |  |  |              * Checkes whether the passed base url name is of the admin index page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 286 |  |  |              * @since       3.5.3 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 287 |  |  |              * return       boolean      Whether the passed base url name is of the admin index page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 288 |  |  |              */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 289 |  |  |             static private function _isInAdminIndex( $sPageNow ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 290 |  |  |                 return in_array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 291 |  |  |                     $sPageNow, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 292 |  |  |                     array( '', 'index', 'index.php' ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 293 |  |  |                 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 294 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 295 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 296 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 297 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 298 |  |  |      * Returns the current loading screen id. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 299 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 300 |  |  |      * @since       3.1.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 301 |  |  |      * @return      string      The found screen ID. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 302 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 303 |  |  |     static public function getCurrentScreenID() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 304 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 305 |  |  |         $_oScreen = get_current_screen(); | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 306 |  |  |         if ( is_string( $_oScreen ) ) { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 307 |  |  |             $_oScreen = convert_to_screen( $_oScreen ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 308 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 309 |  |  |         if ( isset( $_oScreen->id ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 310 |  |  |             return $_oScreen->id; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 311 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 312 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 313 |  |  |         if ( isset( $GLBOALS[ 'page_hook' ] ) ) { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 314 |  |  |             return is_network_admin() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 315 |  |  |                 ? $GLBOALS[ 'page_hook' ] . '-network' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 316 |  |  |                 : $GLBOALS[ 'page_hook' ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 317 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 318 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 319 |  |  |         return ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 320 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 321 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 322 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 323 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 324 |  |  |      * Checks if a meta box exists in the current page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 325 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 326 |  |  |      * @since       3.7.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 327 |  |  |      * @return      boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 328 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 329 |  |  |     static public function doesMetaBoxExist( $sContext='' ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 330 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 331 |  |  |         $_aDimensions = array( 'wp_meta_boxes', $GLOBALS[ 'page_hook' ] ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 332 |  |  |         if ( $sContext ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 333 |  |  |             $_aDimensions[] = $sContext; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 334 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 335 |  |  |         $_aSideMetaBoxes = self::getElementAsArray( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 336 |  |  |             $GLOBALS, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 337 |  |  |             $_aDimensions | 
            
                                                                                                            
                            
            
                                    
            
            
                | 338 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 339 |  |  |         return count( $_aSideMetaBoxes ) > 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 340 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 341 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 342 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 343 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 344 |  |  |      * Returns the number of columns in the currently loading page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 345 |  |  |      * @return      integer     The number of columns that the current screen displays. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 346 |  |  |      * @since       3.6.3 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 347 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 348 |  |  |     static public function getNumberOfScreenColumns() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 349 |  |  |         return get_current_screen()->get_columns(); | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 350 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 351 |  |  |  | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 352 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 353 |  |  |  | 
            
                        
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.