( 1024 * get_site_option( 'fileupload_maxk', 1500 ) ) )
$file['error'] = sprintf(__('This file is too big. Files must be less than %1$s KB in size.'), get_site_option( 'fileupload_maxk', 1500 ) );
if ( upload_is_user_over_quota( false ) ) {
$file['error'] = __( 'You have used your space quota. Please delete files before uploading.' );
}
if ( $file['error'] != '0' && !isset($_POST['html-upload']) )
wp_die( $file['error'] . ' ' . __( 'Back' ) . ' ' );
return $file;
}
add_filter( 'wp_handle_upload_prefilter', 'check_upload_size' );
/**
* Delete a blog
*
* @since 3.0.0
*
* @param int $blog_id Blog ID
* @param bool $drop True if blog's table should be dropped. Default is false.
* @return void
*/
function wpmu_delete_blog( $blog_id, $drop = false ) {
global $wpdb;
$switch = false;
if ( $blog_id != $wpdb->blogid ) {
$switch = true;
switch_to_blog( $blog_id );
}
$blog_prefix = $wpdb->get_blog_prefix( $blog_id );
do_action( 'delete_blog', $blog_id, $drop );
$users = get_users_of_blog( $blog_id );
// Remove users from this blog.
if ( ! empty( $users ) ) {
foreach ( $users as $user ) {
remove_user_from_blog( $user->ID, $blog_id) ;
}
}
update_blog_status( $blog_id, 'deleted', 1 );
if ( $drop ) {
if ( substr( $blog_prefix, -1 ) == '_' )
$blog_prefix = substr( $blog_prefix, 0, -1 ) . '\_';
$drop_tables = $wpdb->get_results( "SHOW TABLES LIKE '{$blog_prefix}%'", ARRAY_A );
$drop_tables = apply_filters( 'wpmu_drop_tables', $drop_tables );
reset( $drop_tables );
foreach ( (array) $drop_tables as $drop_table) {
$wpdb->query( "DROP TABLE IF EXISTS ". current( $drop_table ) ."" );
}
$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->blogs WHERE blog_id = %d", $blog_id ) );
$dir = apply_filters( 'wpmu_delete_blog_upload_dir', WP_CONTENT_DIR . "/blogs.dir/{$blog_id}/files/", $blog_id );
$dir = rtrim( $dir, DIRECTORY_SEPARATOR );
$top_dir = $dir;
$stack = array($dir);
$index = 0;
while ( $index < count( $stack ) ) {
# Get indexed directory from stack
$dir = $stack[$index];
$dh = @opendir( $dir );
if ( $dh ) {
while ( ( $file = @readdir( $dh ) ) !== false ) {
if ( $file == '.' || $file == '..' )
continue;
if ( @is_dir( $dir . DIRECTORY_SEPARATOR . $file ) )
$stack[] = $dir . DIRECTORY_SEPARATOR . $file;
else if ( @is_file( $dir . DIRECTORY_SEPARATOR . $file ) )
@unlink( $dir . DIRECTORY_SEPARATOR . $file );
}
}
$index++;
}
$stack = array_reverse( $stack ); // Last added dirs are deepest
foreach( (array) $stack as $dir ) {
if ( $dir != $top_dir)
@rmdir( $dir );
}
}
$wpdb->query( "DELETE FROM {$wpdb->usermeta} WHERE meta_key = '{$blog_prefix}autosave_draft_ids'" );
$blogs = get_site_option( 'blog_list' );
if ( is_array( $blogs ) ) {
foreach ( $blogs as $n => $blog ) {
if ( $blog['blog_id'] == $blog_id )
unset( $blogs[$n] );
}
update_site_option( 'blog_list', $blogs );
}
if ( $switch === true )
restore_current_blog();
}
// @todo Merge with wp_delete_user() ?
function wpmu_delete_user( $id ) {
global $wpdb;
$id = (int) $id;
do_action( 'wpmu_delete_user', $id );
$blogs = get_blogs_of_user( $id );
if ( ! empty( $blogs ) ) {
foreach ( $blogs as $blog ) {
switch_to_blog( $blog->userblog_id );
remove_user_from_blog( $id, $blog->userblog_id );
$post_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_author = %d", $id ) );
foreach ( (array) $post_ids as $post_id ) {
wp_delete_post( $post_id );
}
// Clean links
$link_ids = $wpdb->get_col( $wpdb->prepare( "SELECT link_id FROM $wpdb->links WHERE link_owner = %d", $id ) );
if ( $link_ids ) {
foreach ( $link_ids as $link_id )
wp_delete_link( $link_id );
}
restore_current_blog();
}
}
$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->users WHERE ID = %d", $id ) );
$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->usermeta WHERE user_id = %d", $id ) );
clean_user_cache( $id );
// allow for commit transaction
do_action( 'deleted_user', $id );
return true;
}
function wpmu_get_blog_allowedthemes( $blog_id = 0 ) {
$themes = get_themes();
if ( $blog_id != 0 )
switch_to_blog( $blog_id );
$blog_allowed_themes = get_option( 'allowedthemes' );
if ( !is_array( $blog_allowed_themes ) || empty( $blog_allowed_themes ) ) { // convert old allowed_themes to new allowedthemes
$blog_allowed_themes = get_option( 'allowed_themes' );
if ( is_array( $blog_allowed_themes ) ) {
foreach( (array) $themes as $key => $theme ) {
$theme_key = esc_html( $theme['Stylesheet'] );
if ( isset( $blog_allowed_themes[$key] ) == true ) {
$blog_allowedthemes[$theme_key] = 1;
}
}
$blog_allowed_themes = $blog_allowedthemes;
add_option( 'allowedthemes', $blog_allowed_themes );
delete_option( 'allowed_themes' );
}
}
if ( $blog_id != 0 )
restore_current_blog();
return $blog_allowed_themes;
}
function update_option_new_admin_email( $old_value, $value ) {
$email = get_option( 'admin_email' );
if ( $value == get_option( 'admin_email' ) || !is_email( $value ) )
return;
$hash = md5( $value. time() .mt_rand() );
$new_admin_email = array(
'hash' => $hash,
'newemail' => $value
);
update_option( 'adminhash', $new_admin_email );
$content = apply_filters( 'new_admin_email_content', __( "Dear user,
You recently requested to have the administration email address on
your site changed.
If this is correct, please click on the following link to change it:
###ADMIN_URL###
You can safely ignore and delete this email if you do not want to
take this action.
This email has been sent to ###EMAIL###
Regards,
All at ###SITENAME###
###SITEURL### "), $new_admin_email );
$content = str_replace( '###ADMIN_URL###', esc_url( admin_url( 'options.php?adminhash='.$hash ) ), $content );
$content = str_replace( '###EMAIL###', $value, $content );
$content = str_replace( '###SITENAME###', get_site_option( 'site_name' ), $content );
$content = str_replace( '###SITEURL###', network_home_url(), $content );
wp_mail( $value, sprintf( __( '[%s] New Admin Email Address' ), get_option( 'blogname' ) ), $content );
}
add_action( 'update_option_new_admin_email', 'update_option_new_admin_email', 10, 2 );
add_action( 'add_option_new_admin_email', 'update_option_new_admin_email', 10, 2 );
function send_confirmation_on_profile_email() {
global $errors, $wpdb;
$current_user = wp_get_current_user();
if ( ! is_object($errors) )
$errors = new WP_Error();
if ( $current_user->id != $_POST['user_id'] )
return false;
if ( $current_user->user_email != $_POST['email'] ) {
if ( !is_email( $_POST['email'] ) ) {
$errors->add( 'user_email', __( "ERROR : The e-mail address isn't correct." ), array( 'form-field' => 'email' ) );
return;
}
if ( $wpdb->get_var( $wpdb->prepare( "SELECT user_email FROM {$wpdb->users} WHERE user_email=%s", $_POST['email'] ) ) ) {
$errors->add( 'user_email', __( "ERROR : The e-mail address is already used." ), array( 'form-field' => 'email' ) );
delete_option( $current_user->ID . '_new_email' );
return;
}
$hash = md5( $_POST['email'] . time() . mt_rand() );
$new_user_email = array(
'hash' => $hash,
'newemail' => $_POST['email']
);
update_option( $current_user->ID . '_new_email', $new_user_email );
$content = apply_filters( 'new_user_email_content', __( "Dear user,
You recently requested to have the email address on your account changed.
If this is correct, please click on the following link to change it:
###ADMIN_URL###
You can safely ignore and delete this email if you do not want to
take this action.
This email has been sent to ###EMAIL###
Regards,
All at ###SITENAME###
###SITEURL###" ), $new_user_email );
$content = str_replace( '###ADMIN_URL###', esc_url( admin_url( 'profile.php?newuseremail='.$hash ) ), $content );
$content = str_replace( '###EMAIL###', $_POST['email'], $content);
$content = str_replace( '###SITENAME###', get_site_option( 'site_name' ), $content );
$content = str_replace( '###SITEURL###', network_home_url(), $content );
wp_mail( $_POST['email'], sprintf( __( '[%s] New Email Address' ), get_option( 'blogname' ) ), $content );
$_POST['email'] = $current_user->user_email;
}
}
add_action( 'personal_options_update', 'send_confirmation_on_profile_email' );
function new_user_email_admin_notice() {
if ( strpos( $_SERVER['PHP_SELF'], 'profile.php' ) && isset( $_GET['updated'] ) && $email = get_option( get_current_user_id() . '_new_email' ) )
echo "" . sprintf( __( "Your email address has not been updated yet. Please check your inbox at %s for a confirmation email." ), $email['newemail'] ) . "
";
}
add_action( 'admin_notices', 'new_user_email_admin_notice' );
function get_site_allowed_themes() {
$themes = get_themes();
$allowed_themes = get_site_option( 'allowedthemes' );
if ( !is_array( $allowed_themes ) || empty( $allowed_themes ) ) {
$allowed_themes = get_site_option( 'allowed_themes' ); // convert old allowed_themes format
if ( !is_array( $allowed_themes ) ) {
$allowed_themes = array();
} else {
foreach( (array) $themes as $key => $theme ) {
$theme_key = esc_html( $theme['Stylesheet'] );
if ( isset( $allowed_themes[ $key ] ) == true ) {
$allowedthemes[ $theme_key ] = 1;
}
}
$allowed_themes = $allowedthemes;
}
}
return $allowed_themes;
}
/**
* Determines if there is any upload space left in the current blog's quota.
*
* @since 3.0.0
* @return bool True if space is available, false otherwise.
*/
function is_upload_space_available() {
if ( get_site_option( 'upload_space_check_disabled' ) )
return true;
if ( !( $space_allowed = get_upload_space_available() ) )
return false;
return true;
}
/*
* @since 3.0.0
*
* @return int of upload size limit in bytes
*/
function upload_size_limit_filter( $size ) {
$fileupload_maxk = 1024 * get_site_option( 'fileupload_maxk', 1500 );
return min( $size, $fileupload_maxk, get_upload_space_available() );
}
/**
* Determines if there is any upload space left in the current blog's quota.
*
* @return int of upload space available in bytes
*/
function get_upload_space_available() {
$space_allowed = get_space_allowed() * 1024 * 1024;
if ( get_site_option( 'upload_space_check_disabled' ) )
return $space_allowed;
$dir_name = trailingslashit( BLOGUPLOADDIR );
if ( !( is_dir( $dir_name) && is_readable( $dir_name ) ) )
return $space_allowed;
$dir = dir( $dir_name );
$size = 0;
while ( $file = $dir->read() ) {
if ( $file != '.' && $file != '..' ) {
if ( is_dir( $dir_name . $file) ) {
$size += get_dirsize( $dir_name . $file );
} else {
$size += filesize( $dir_name . $file );
}
}
}
$dir->close();
if ( ( $space_allowed - $size ) <= 0 )
return 0;
return $space_allowed - $size;
}
/**
* Returns the upload quota for the current blog.
*
* @return int Quota
*/
function get_space_allowed() {
$space_allowed = get_option( 'blog_upload_space' );
if ( $space_allowed == false )
$space_allowed = get_site_option( 'blog_upload_space' );
if ( empty( $space_allowed ) || !is_numeric( $space_allowed ) )
$space_allowed = 50;
return $space_allowed;
}
function display_space_usage() {
$space = get_space_allowed();
$used = get_dirsize( BLOGUPLOADDIR ) / 1024 / 1024;
$percentused = ( $used / $space ) * 100;
if ( $space > 1000 ) {
$space = number_format( $space / 1024 );
/* translators: Gigabytes */
$space .= __( 'GB' );
} else {
/* translators: Megabytes */
$space .= __( 'MB' );
}
?>
update( $wpdb->users, array( $pref => $value ), array( 'ID' => $id ) );
clean_user_cache( $id );
if ( $pref == 'spam' ) {
if ( $value == 1 )
do_action( 'make_spam_user', $id );
else
do_action( 'make_ham_user', $id );
}
return $value;
}
function refresh_user_details( $id ) {
$id = (int) $id;
if ( !$user = get_userdata( $id ) )
return false;
clean_user_cache( $id );
return $id;
}
function format_code_lang( $code = '' ) {
$code = strtolower( substr( $code, 0, 2 ) );
$lang_codes = array(
'aa' => 'Afar', 'ab' => 'Abkhazian', 'af' => 'Afrikaans', 'ak' => 'Akan', 'sq' => 'Albanian', 'am' => 'Amharic', 'ar' => 'Arabic', 'an' => 'Aragonese', 'hy' => 'Armenian', 'as' => 'Assamese', 'av' => 'Avaric', 'ae' => 'Avestan', 'ay' => 'Aymara', 'az' => 'Azerbaijani', 'ba' => 'Bashkir', 'bm' => 'Bambara', 'eu' => 'Basque', 'be' => 'Belarusian', 'bn' => 'Bengali',
'bh' => 'Bihari', 'bi' => 'Bislama', 'bs' => 'Bosnian', 'br' => 'Breton', 'bg' => 'Bulgarian', 'my' => 'Burmese', 'ca' => 'Catalan; Valencian', 'ch' => 'Chamorro', 'ce' => 'Chechen', 'zh' => 'Chinese', 'cu' => 'Church Slavic; Old Slavonic; Church Slavonic; Old Bulgarian; Old Church Slavonic', 'cv' => 'Chuvash', 'kw' => 'Cornish', 'co' => 'Corsican', 'cr' => 'Cree',
'cs' => 'Czech', 'da' => 'Danish', 'dv' => 'Divehi; Dhivehi; Maldivian', 'nl' => 'Dutch; Flemish', 'dz' => 'Dzongkha', 'en' => 'English', 'eo' => 'Esperanto', 'et' => 'Estonian', 'ee' => 'Ewe', 'fo' => 'Faroese', 'fj' => 'Fijjian', 'fi' => 'Finnish', 'fr' => 'French', 'fy' => 'Western Frisian', 'ff' => 'Fulah', 'ka' => 'Georgian', 'de' => 'German', 'gd' => 'Gaelic; Scottish Gaelic',
'ga' => 'Irish', 'gl' => 'Galician', 'gv' => 'Manx', 'el' => 'Greek, Modern', 'gn' => 'Guarani', 'gu' => 'Gujarati', 'ht' => 'Haitian; Haitian Creole', 'ha' => 'Hausa', 'he' => 'Hebrew', 'hz' => 'Herero', 'hi' => 'Hindi', 'ho' => 'Hiri Motu', 'hu' => 'Hungarian', 'ig' => 'Igbo', 'is' => 'Icelandic', 'io' => 'Ido', 'ii' => 'Sichuan Yi', 'iu' => 'Inuktitut', 'ie' => 'Interlingue',
'ia' => 'Interlingua (International Auxiliary Language Association)', 'id' => 'Indonesian', 'ik' => 'Inupiaq', 'it' => 'Italian', 'jv' => 'Javanese', 'ja' => 'Japanese', 'kl' => 'Kalaallisut; Greenlandic', 'kn' => 'Kannada', 'ks' => 'Kashmiri', 'kr' => 'Kanuri', 'kk' => 'Kazakh', 'km' => 'Central Khmer', 'ki' => 'Kikuyu; Gikuyu', 'rw' => 'Kinyarwanda', 'ky' => 'Kirghiz; Kyrgyz',
'kv' => 'Komi', 'kg' => 'Kongo', 'ko' => 'Korean', 'kj' => 'Kuanyama; Kwanyama', 'ku' => 'Kurdish', 'lo' => 'Lao', 'la' => 'Latin', 'lv' => 'Latvian', 'li' => 'Limburgan; Limburger; Limburgish', 'ln' => 'Lingala', 'lt' => 'Lithuanian', 'lb' => 'Luxembourgish; Letzeburgesch', 'lu' => 'Luba-Katanga', 'lg' => 'Ganda', 'mk' => 'Macedonian', 'mh' => 'Marshallese', 'ml' => 'Malayalam',
'mi' => 'Maori', 'mr' => 'Marathi', 'ms' => 'Malay', 'mg' => 'Malagasy', 'mt' => 'Maltese', 'mo' => 'Moldavian', 'mn' => 'Mongolian', 'na' => 'Nauru', 'nv' => 'Navajo; Navaho', 'nr' => 'Ndebele, South; South Ndebele', 'nd' => 'Ndebele, North; North Ndebele', 'ng' => 'Ndonga', 'ne' => 'Nepali', 'nn' => 'Norwegian Nynorsk; Nynorsk, Norwegian', 'nb' => 'Bokmål, Norwegian, Norwegian Bokmål',
'no' => 'Norwegian', 'ny' => 'Chichewa; Chewa; Nyanja', 'oc' => 'Occitan, Provençal', 'oj' => 'Ojibwa', 'or' => 'Oriya', 'om' => 'Oromo', 'os' => 'Ossetian; Ossetic', 'pa' => 'Panjabi; Punjabi', 'fa' => 'Persian', 'pi' => 'Pali', 'pl' => 'Polish', 'pt' => 'Portuguese', 'ps' => 'Pushto', 'qu' => 'Quechua', 'rm' => 'Romansh', 'ro' => 'Romanian', 'rn' => 'Rundi', 'ru' => 'Russian',
'sg' => 'Sango', 'sa' => 'Sanskrit', 'sr' => 'Serbian', 'hr' => 'Croatian', 'si' => 'Sinhala; Sinhalese', 'sk' => 'Slovak', 'sl' => 'Slovenian', 'se' => 'Northern Sami', 'sm' => 'Samoan', 'sn' => 'Shona', 'sd' => 'Sindhi', 'so' => 'Somali', 'st' => 'Sotho, Southern', 'es' => 'Spanish; Castilian', 'sc' => 'Sardinian', 'ss' => 'Swati', 'su' => 'Sundanese', 'sw' => 'Swahili',
'sv' => 'Swedish', 'ty' => 'Tahitian', 'ta' => 'Tamil', 'tt' => 'Tatar', 'te' => 'Telugu', 'tg' => 'Tajik', 'tl' => 'Tagalog', 'th' => 'Thai', 'bo' => 'Tibetan', 'ti' => 'Tigrinya', 'to' => 'Tonga (Tonga Islands)', 'tn' => 'Tswana', 'ts' => 'Tsonga', 'tk' => 'Turkmen', 'tr' => 'Turkish', 'tw' => 'Twi', 'ug' => 'Uighur; Uyghur', 'uk' => 'Ukrainian', 'ur' => 'Urdu', 'uz' => 'Uzbek',
've' => 'Venda', 'vi' => 'Vietnamese', 'vo' => 'Volapük', 'cy' => 'Welsh','wa' => 'Walloon','wo' => 'Wolof', 'xh' => 'Xhosa', 'yi' => 'Yiddish', 'yo' => 'Yoruba', 'za' => 'Zhuang; Chuang', 'zu' => 'Zulu' );
$lang_codes = apply_filters( 'lang_codes', $lang_codes, $code );
return strtr( $code, $lang_codes );
}
function sync_category_tag_slugs( $term, $taxonomy ) {
if ( global_terms_enabled() && ( $taxonomy == 'category' || $taxonomy == 'post_tag' ) ) {
if ( is_object( $term ) ) {
$term->slug = sanitize_title( $term->name );
} else {
$term['slug'] = sanitize_title( $term['name'] );
}
}
return $term;
}
add_filter( 'get_term', 'sync_category_tag_slugs', 10, 2 );
function redirect_user_to_blog() {
$c = 0;
if ( isset( $_GET['c'] ) )
$c = (int) $_GET['c'];
if ( $c >= 5 ) {
wp_die( __( "You don’t have permission to view this site. Please contact the system administrator." ) );
}
$c ++;
$blog = get_active_blog_for_user( get_current_user_id() );
if ( is_object( $blog ) ) {
wp_redirect( get_admin_url( $blog->blog_id, '?c=' . $c ) ); // redirect and count to 5, "just in case"
} else {
wp_redirect( user_admin_url( '?c=' . $c ) ); // redirect and count to 5, "just in case"
}
exit;
}
add_action( 'admin_page_access_denied', 'redirect_user_to_blog', 99 );
function check_import_new_users( $permission ) {
if ( !is_super_admin() )
return false;
return true;
}
add_filter( 'import_allow_create_users', 'check_import_new_users' );
// See "import_allow_fetch_attachments" and "import_attachment_size_limit" filters too.
function mu_dropdown_languages( $lang_files = array(), $current = '' ) {
$flag = false;
$output = array();
foreach ( (array) $lang_files as $val ) {
$code_lang = basename( $val, '.mo' );
if ( $code_lang == 'en_US' ) { // American English
$flag = true;
$ae = __( 'American English' );
$output[$ae] = ' ' . $ae . ' ';
} elseif ( $code_lang == 'en_GB' ) { // British English
$flag = true;
$be = __( 'British English' );
$output[$be] = ' ' . $be . ' ';
} else {
$translated = format_code_lang( $code_lang );
$output[$translated] = ' ' . esc_html ( $translated ) . ' ';
}
}
if ( $flag === false ) // WordPress english
$output[] = '' . __( 'English' ) . " ";
// Order by name
uksort( $output, 'strnatcasecmp' );
$output = apply_filters( 'mu_dropdown_languages', $output, $lang_files, $current );
echo implode( "\n\t", $output );
}
/* Warn the admin if SECRET SALT information is missing from wp-config.php */
function secret_salt_warning() {
if ( !is_super_admin() )
return;
$secret_keys = array( 'AUTH_KEY', 'SECURE_AUTH_KEY', 'LOGGED_IN_KEY', 'NONCE_KEY', 'AUTH_SALT', 'SECURE_AUTH_SALT', 'LOGGED_IN_SALT', 'NONCE_SALT' );
$out = '';
foreach( $secret_keys as $key ) {
if ( ! defined( $key ) )
$out .= "define( '$key', '" . esc_html( wp_generate_password( 64, true, true ) ) . "' );wp-config.php for it to be more secure.' );
$msg .= '/* That's all, stop editing! Happy blogging. */ please add this code:" );
$msg .= "$out";
echo "$msg
";
}
}
add_action( 'admin_notices', 'secret_salt_warning' );
function site_admin_notice() {
global $wp_db_version;
if ( !is_super_admin() )
return false;
if ( get_site_option( 'wpmu_upgrade_site' ) != $wp_db_version )
echo "" . sprintf( __( 'Thank you for Updating! Please visit the
Update Network page to update all your sites.' ), esc_url( network_admin_url( 'upgrade.php' ) ) ) . "
%1$s file is deprecated. Please remove it and update your server rewrite rules to use %2$s instead.' ), 'wp-content/blogs.php', 'wp-includes/ms-files.php' ) . '';
}
add_action( 'admin_notices', 'ms_deprecated_blogs_file' );
/**
* Grants super admin privileges.
*
* @since 3.0.0
* @param int $user_id
*/
function grant_super_admin( $user_id ) {
global $super_admins;
// If global super_admins override is defined, there is nothing to do here.
if ( isset($super_admins) )
return false;
do_action( 'grant_super_admin', $user_id );
// Directly fetch site_admins instead of using get_super_admins()
$super_admins = get_site_option( 'site_admins', array( 'admin' ) );
$user = new WP_User( $user_id );
if ( ! in_array( $user->user_login, $super_admins ) ) {
$super_admins[] = $user->user_login;
update_site_option( 'site_admins' , $super_admins );
do_action( 'granted_super_admin', $user_id );
return true;
}
return false;
}
/**
* Revokes super admin privileges.
*
* @since 3.0.0
* @param int $user_id
*/
function revoke_super_admin( $user_id ) {
global $super_admins;
// If global super_admins override is defined, there is nothing to do here.
if ( isset($super_admins) )
return false;
do_action( 'revoke_super_admin', $user_id );
// Directly fetch site_admins instead of using get_super_admins()
$super_admins = get_site_option( 'site_admins', array( 'admin' ) );
$user = new WP_User( $user_id );
if ( $user->user_email != get_site_option( 'admin_email' ) ) {
if ( false !== ( $key = array_search( $user->user_login, $super_admins ) ) ) {
unset( $super_admins[$key] );
update_site_option( 'site_admins', $super_admins );
do_action( 'revoked_super_admin', $user_id );
return true;
}
}
return false;
}
/**
* Whether or not we can edit this network from this page
*
* By default editing of network is restricted to the Network Admin for that site_id this allows for this to be overridden
*
* @since 3.1.0
* @param integer $site_id The network/site id to check.
*/
function can_edit_network( $site_id ) {
global $wpdb;
if ($site_id == $wpdb->siteid )
$result = true;
else
$result = false;
return apply_filters( 'can_edit_network', $result, $site_id );
}
?>