这个插件php wordpress中的全局类名是什么？

Question

I am trying to remove_filter from this plugin, as wordpress refrence

global $my_class;
remove_filter( 'the_content', array($my_class, 'class_filter_function') );

In this code, there is 'add_filter('bp_core_fetch_avatar', array($this, 'set_buddypress_avatar'), 10, 1);' that I would like to remove_filter, the big issue here, what is $this ? I cannot global $this , so what is the $my_class in the following code?

I had tried global $BuddyPress_First_Letter_Avatar and global BuddyPress_First_Letter_Avata , it gave me error.

 <?php class BuddyPress_First_Letter_Avatar { // Setup (these values always stay the same): const BPFLA_IMAGES_PATH = 'images'; // avatars root directory const BPFLA_GRAVATAR_URL = 'https://secure.gravatar.com/avatar/'; // default url for gravatar - we're using HTTPS to avoid annoying warnings // Default configuration (this is the default configuration only for the first plugin usage): const BPFLA_USE_PROFILE_AVATAR = TRUE; // TRUE: if user has his profile avatar, use it; FALSE: use custom avatars or Gravatars const BPFLA_USE_GRAVATAR = TRUE; // TRUE: if user has Gravatar, use it; FALSE: use custom avatars or user's profile avatar const BPFLA_AVATAR_SET = 'default'; // directory where avatars are stored const BPFLA_LETTER_INDEX = 0; // 0: first letter; 1: second letter; -1: last letter, etc. const BPFLA_IMAGES_FORMAT = 'png'; // file format of the avatars const BPFLA_ROUND_AVATARS = FALSE; // TRUE: use rounded avatars; FALSE: dont use round avatars const BPFLA_IMAGE_UNKNOWN = 'mystery'; // file name (without extension) of the avatar used for users with usernames beginning // with symbol other than one from az range // variables duplicating const values (will be changed in constructor after reading config from DB): private $use_profile_avatar = self::BPFLA_USE_PROFILE_AVATAR; private $use_gravatar = self::BPFLA_USE_GRAVATAR; private $avatar_set = self::BPFLA_AVATAR_SET; private $letter_index = self::BPFLA_LETTER_INDEX; private $images_format = self::BPFLA_IMAGES_FORMAT; private $round_avatars = self::BPFLA_ROUND_AVATARS; private $image_unknown = self::BPFLA_IMAGE_UNKNOWN; public function __construct(){ // add Settings link to plugins page: add_filter('plugin_action_links_' . plugin_basename(__FILE__), array($this, 'bpfla_add_settings_link')); // add stylesheets/scripts: add_action('wp_enqueue_scripts', array($this, 'bpfla_add_scripts')); // add filter to get_avatar: add_filter('get_avatar', array($this, 'set_comment_avatar'), 10, 5); // this will only be used for anonymous WordPress comments // add filter to bp_core_fetch_avatar: add_filter('bp_core_fetch_avatar', array($this, 'set_buddypress_avatar'), 10, 1); // get plugin configuration from database: $options = get_option('bpfla_settings'); if (empty($options)){ // no records in DB, use default (const) values to save plugin config: $settings = array( 'bpfla_use_profile_avatar' => self::BPFLA_USE_PROFILE_AVATAR, 'bpfla_use_gravatar' => self::BPFLA_USE_GRAVATAR, 'bpfla_avatar_set' => self::BPFLA_AVATAR_SET, 'bpfla_letter_index' => self::BPFLA_LETTER_INDEX, 'bpfla_file_format' => self::BPFLA_IMAGES_FORMAT, 'bpfla_round_avatars' => self::BPFLA_ROUND_AVATARS, 'bpfla_unknown_image' => self::BPFLA_IMAGE_UNKNOWN ); add_option('bpfla_settings', $settings); } else { // there are records in DB for our plugin, let's assign them to our variables: $this->use_profile_avatar = $options['bpfla_use_profile_avatar']; $this->use_gravatar = $options['bpfla_use_gravatar']; $this->avatar_set = $options['bpfla_avatar_set']; $this->letter_index = $options['bpfla_letter_index']; $this->images_format = $options['bpfla_file_format']; $this->round_avatars = $options['bpfla_round_avatars']; $this->image_unknown = $options['bpfla_unknown_image']; } } ?>public function set_buddypress_avatar($html_data = ''){ $html_doc = new DOMDocument(); $html_doc->loadHTML($html_data); $image = $html_doc->getElementsByTagName('img'); foreach($image as $data) { $original_image = $data->getAttribute('src'); $size = $data->getAttribute('width'); $alt = $data->getAttribute('alt'); if (stripos($alt, 'Profile picture of ') === 0){ // if our alt attribute has "profile picture of" in the beginning... $name = str_replace('Profile picture of ', '', $alt); } else if (stripos($alt, 'Profile photo of ') === 0){ // or profile photo of... $name = str_replace('Profile photo of ', '', $alt); } else { // if there is some problem - just assign alt to name $name = $alt; } } // something went wrong, just return what came in function argument: if (empty($original_image) || empty($size) || empty($name) || empty($alt)){ return $html_data; } // if there is no gravatar URL it means that user has set his own profila avatar, // so we're gonna see if we should be using it; // if we should, just return the input data and leave the avatar as it was: if ($this->use_profile_avatar == TRUE){ if (stripos($original_image, 'gravatar.com/avatar') === FALSE){ return $html_data; } } // check whether Gravatar should be used at all: if ($this->use_gravatar == TRUE){ // gravatar used as default option, now check whether user's gravatar is set: if ($this->gravatar_exists_uri($original_image)){ // gravatar is set, return input data (nothing changes): return $html_data; } else { // gravatar is not set, proceed to choose custom avatar: $avatar_output = $this->choose_custom_avatar($name, $size, $alt,$gender); } } else { // gravatar is not used as default option, only custom avatars will be used; proceed to choose custom avatar: $avatar_output = $this->choose_custom_avatar($name, $size, $alt,$gender); } return $avatar_output; } 

Answer 1

你有没有尝试过这样的事情

remove_filter( 'the_content', array('BuddyPress_First_Letter_Avatar ', 'class_filter_function') );