<?php

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/**

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* Deprecated functions from WordPress MU and the multisite feature. You shouldn't

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* use these functions and look for the alternatives instead. The functions will be

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* removed in a later version.

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*

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* @package WordPress

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* @subpackage Deprecated

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* @since 3.0.0

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*/

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/*

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* Deprecated functions come here to die.

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*/

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/**

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* Get the "dashboard blog", the blog where users without a blog edit their profile data.

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* Dashboard blog functionality was removed in WordPress 3.1, replaced by the user admin.

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*

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* @since MU (3.0.0)

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* @deprecated 3.1.0 Use get_site()

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* @see get_site()

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*

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* @return WP_Site Current site object.

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*/

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function get_dashboard_blog() {

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_deprecated_function( __FUNCTION__, '3.1.0', 'get_site()' );

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if ( $blog = get_site_option( 'dashboard_blog' ) ) {

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return get_site( $blog );

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}

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return get_site( get_network()->site_id );

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}

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/**

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* Generates a random password.

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*

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* @since MU (3.0.0)

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* @deprecated 3.0.0 Use wp_generate_password()

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* @see wp_generate_password()

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*

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* @param int $len Optional. The length of password to generate. Default 8.

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*/

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function generate_random_password( $len = 8 ) {

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_deprecated_function( __FUNCTION__, '3.0.0', 'wp_generate_password()' );

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return wp_generate_password( $len );

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}

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/**

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* Determine if user is a site admin.

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*

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* Plugins should use is_multisite() instead of checking if this function exists

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* to determine if multisite is enabled.

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*

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* This function must reside in a file included only if is_multisite() due to

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* legacy function_exists() checks to determine if multisite is enabled.

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*

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* @since MU (3.0.0)

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* @deprecated 3.0.0 Use is_super_admin()

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* @see is_super_admin()

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*

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* @param string $user_login Optional. Username for the user to check. Default empty.

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*/

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function is_site_admin( $user_login = '' ) {

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_deprecated_function( __FUNCTION__, '3.0.0', 'is_super_admin()' );

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if ( empty( $user_login ) ) {

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$user_id = get_current_user_id();

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if ( !$user_id )

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return false;

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} else {

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$user = get_user_by( 'login', $user_login );

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if ( ! $user->exists() )

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return false;

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$user_id = $user->ID;

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}

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return is_super_admin( $user_id );

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}

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if ( !function_exists( 'graceful_fail' ) ) :

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/**

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* Deprecated functionality to gracefully fail.

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*

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* @since MU (3.0.0)

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* @deprecated 3.0.0 Use wp_die()

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* @see wp_die()

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*/

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function graceful_fail( $message ) {

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_deprecated_function( __FUNCTION__, '3.0.0', 'wp_die()' );

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$message = apply_filters( 'graceful_fail', $message );

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$message_template = apply_filters( 'graceful_fail_template',

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'<!DOCTYPE html>

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<html><head>

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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

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<title>Error!</title>

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<style type="text/css">

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img {

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border: 0;

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}

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body {

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line-height: 1.6em; font-family: Georgia, serif; width: 390px; margin: auto;

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text-align: center;

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}

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.message {

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font-size: 22px;

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width: 350px;

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margin: auto;

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}

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</style>

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</head>

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<body>

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<p class="message">%s</p>

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</body>

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</html>' );

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die( sprintf( $message_template, $message ) );

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}

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endif;

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/**

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* Deprecated functionality to retrieve user information.

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*

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* @since MU (3.0.0)

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* @deprecated 3.0.0 Use get_user_by()

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* @see get_user_by()

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*

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* @param string $username Username.

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*/

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function get_user_details( $username ) {

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_deprecated_function( __FUNCTION__, '3.0.0', 'get_user_by()' );

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return get_user_by('login', $username);

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}

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/**

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* Deprecated functionality to clear the global post cache.

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*

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* @since MU (3.0.0)

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* @deprecated 3.0.0 Use clean_post_cache()

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* @see clean_post_cache()

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*

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* @param int $post_id Post ID.

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*/

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function clear_global_post_cache( $post_id ) {

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_deprecated_function( __FUNCTION__, '3.0.0', 'clean_post_cache()' );

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}

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/**

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* Deprecated functionality to determin if the current site is the main site.

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*

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* @since MU (3.0.0)

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* @deprecated 3.0.0 Use is_main_site()

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* @see is_main_site()

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*/

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function is_main_blog() {

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_deprecated_function( __FUNCTION__, '3.0.0', 'is_main_site()' );

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return is_main_site();

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}

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/**

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* Deprecated functionality to validate an email address.

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*

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* @since MU (3.0.0)

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* @deprecated 3.0.0 Use is_email()

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* @see is_email()

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*

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* @param string $email Email address to verify.

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* @param bool $check_domain Deprecated.

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* @return string|false Valid email address on success, false on failure.

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*/

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function validate_email( $email, $check_domain = true) {

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_deprecated_function( __FUNCTION__, '3.0.0', 'is_email()' );

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return is_email( $email, $check_domain );

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}

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/**

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* Deprecated functionality to retrieve a list of all sites.

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*

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* @since MU (3.0.0)

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* @deprecated 3.0.0 Use wp_get_sites()

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* @see wp_get_sites()

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*

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* @param int $start Optional. Offset for retrieving the blog list. Default 0.

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* @param int $num Optional. Number of blogs to list. Default 10.

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* @param string $deprecated Unused.

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*/

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function get_blog_list( $start = 0, $num = 10, $deprecated = '' ) {

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_deprecated_function( __FUNCTION__, '3.0.0', 'wp_get_sites()' );

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global $wpdb;

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$blogs = $wpdb->get_results( $wpdb->prepare( "SELECT blog_id, domain, path FROM $wpdb->blogs WHERE site_id = %d AND public = '1' AND archived = '0' AND mature = '0' AND spam = '0' AND deleted = '0' ORDER BY registered DESC", get_current_network_id() ), ARRAY_A );

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$blog_list = array();

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foreach ( (array) $blogs as $details ) {

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$blog_list[ $details['blog_id'] ] = $details;

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$blog_list[ $details['blog_id'] ]['postcount'] = $wpdb->get_var( "SELECT COUNT(ID) FROM " . $wpdb->get_blog_prefix( $details['blog_id'] ). "posts WHERE post_status='publish' AND post_type='post'" );

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}

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if ( ! $blog_list ) {

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return array();

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}

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if ( 'all' === $num ) {

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return array_slice( $blog_list, $start, count( $blog_list ) );

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} else {

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return array_slice( $blog_list, $start, $num );

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}

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}

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/**

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* Deprecated functionality to retrieve a list of the most active sites.

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*

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* @since MU (3.0.0)

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* @deprecated 3.0.0

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*

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* @param int $num Optional. Number of activate blogs to retrieve. Default 10.

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* @param bool $display Optional. Whether or not to display the most active blogs list. Default true.

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* @return array List of "most active" sites.

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*/

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function get_most_active_blogs( $num = 10, $display = true ) {

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_deprecated_function( __FUNCTION__, '3.0.0' );

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$blogs = get_blog_list( 0, 'all', false ); // $blog_id -> $details

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if ( is_array( $blogs ) ) {

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reset( $blogs );

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$most_active = array();

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$blog_list = array();

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foreach ( (array) $blogs as $key => $details ) {

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$most_active[ $details['blog_id'] ] = $details['postcount'];

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$blog_list[ $details['blog_id'] ] = $details; // array_slice() removes keys!

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}

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arsort( $most_active );

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reset( $most_active );

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$t = array();

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foreach ( (array) $most_active as $key => $details ) {

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$t[ $key ] = $blog_list[ $key ];

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}

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unset( $most_active );

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$most_active = $t;

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}

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if ( $display ) {

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if ( is_array( $most_active ) ) {

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reset( $most_active );

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foreach ( (array) $most_active as $key => $details ) {

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$url = esc_url('http://' . $details['domain'] . $details['path']);

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echo '<li>' . $details['postcount'] . " <a href='$url'>$url</a></li>";

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}

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}

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}

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return array_slice( $most_active, 0, $num );

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}

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/**

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* Redirect a user based on $_GET or $_POST arguments.

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*

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* The function looks for redirect arguments in the following order:

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* 1) $_GET['ref']

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* 2) $_POST['ref']

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* 3) $_SERVER['HTTP_REFERER']

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* 4) $_GET['redirect']

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* 5) $_POST['redirect']

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* 6) $url

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*

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* @since MU (3.0.0)

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* @deprecated 3.3.0 Use wp_redirect()

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* @see wp_redirect()

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*

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* @param string $url Optional. Redirect URL. Default empty.

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*/

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function wpmu_admin_do_redirect( $url = '' ) {

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_deprecated_function( __FUNCTION__, '3.3.0', 'wp_redirect()' );

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$ref = '';

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if ( isset( $_GET['ref'] ) && isset( $_POST['ref'] ) && $_GET['ref'] !== $_POST['ref'] ) {

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wp_die( __( 'A variable mismatch has been detected.' ), __( 'Sorry, you are not allowed to view this item.' ), 400 );

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} elseif ( isset( $_POST['ref'] ) ) {

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$ref = $_POST['ref'];

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} elseif ( isset( $_GET['ref'] ) ) {

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$ref = $_GET['ref'];

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}

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if ( $ref ) {

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$ref = wpmu_admin_redirect_add_updated_param( $ref );

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wp_redirect( $ref );

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exit;

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}

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if ( ! empty( $_SERVER['HTTP_REFERER'] ) ) {

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wp_redirect( $_SERVER['HTTP_REFERER'] );

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exit;

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}

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$url = wpmu_admin_redirect_add_updated_param( $url );

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if ( isset( $_GET['redirect'] ) && isset( $_POST['redirect'] ) && $_GET['redirect'] !== $_POST['redirect'] ) {

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wp_die( __( 'A variable mismatch has been detected.' ), __( 'Sorry, you are not allowed to view this item.' ), 400 );

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} elseif ( isset( $_GET['redirect'] ) ) {

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if ( 's_' === substr( $_GET['redirect'], 0, 2 ) )

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$url .= '&action=blogs&s='. esc_html( substr( $_GET['redirect'], 2 ) );

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} elseif ( isset( $_POST['redirect'] ) ) {

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$url = wpmu_admin_redirect_add_updated_param( $_POST['redirect'] );

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}

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wp_redirect( $url );

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exit;

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}

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/**

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* Adds an 'updated=true' argument to a URL.

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*

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* @since MU (3.0.0)

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* @deprecated 3.3.0 Use add_query_arg()

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* @see add_query_arg()

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*

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* @param string $url Optional. Redirect URL. Default empty.

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* @return string

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*/

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function wpmu_admin_redirect_add_updated_param( $url = '' ) {

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_deprecated_function( __FUNCTION__, '3.3.0', 'add_query_arg()' );

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if ( strpos( $url, 'updated=true' ) === false ) {

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if ( strpos( $url, '?' ) === false )

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return $url . '?updated=true';

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else

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return $url . '&updated=true';

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}

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return $url;

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}

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/**

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* Get a numeric user ID from either an email address or a login.

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*

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* A numeric string is considered to be an existing user ID

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* and is simply returned as such.

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*

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* @since MU (3.0.0)

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* @deprecated 3.6.0 Use get_user_by()

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* @see get_user_by()

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*

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* @param string $string Either an email address or a login.

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* @return int

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*/

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function get_user_id_from_string( $string ) {

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_deprecated_function( __FUNCTION__, '3.6.0', 'get_user_by()' );

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if ( is_email( $string ) )

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$user = get_user_by( 'email', $string );

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elseif ( is_numeric( $string ) )

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return $string;

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else

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$user = get_user_by( 'login', $string );

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if ( $user )

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return $user->ID;

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return 0;

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}

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/**

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* Get a full blog URL, given a domain and a path.

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*

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* @since MU (3.0.0)

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* @deprecated 3.7.0

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*

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* @param string $domain

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* @param string $path

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* @return string

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*/

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function get_blogaddress_by_domain( $domain, $path ) {

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_deprecated_function( __FUNCTION__, '3.7.0' );

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if ( is_subdomain_install() ) {

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$url = "http://" . $domain.$path;

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} else {

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if ( $domain != $_SERVER['HTTP_HOST'] ) {

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$blogname = substr( $domain, 0, strpos( $domain, '.' ) );

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$url = 'http://' . substr( $domain, strpos( $domain, '.' ) + 1 ) . $path;

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// We're not installing the main blog.

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if ( 'www.' !== $blogname )

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$url .= $blogname . '/';

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} else { // Main blog.

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$url = 'http://' . $domain . $path;

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}

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}

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return esc_url_raw( $url );

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}

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[382] Fix | Delete

/**

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* Create an empty blog.

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*

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* @since MU (3.0.0)

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* @deprecated 4.4.0

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*

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* @param string $domain The new blog's domain.

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* @param string $path The new blog's path.

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* @param string $weblog_title The new blog's title.

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* @param int $site_id Optional. Defaults to 1.

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* @return string|int The ID of the newly created blog

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*/

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function create_empty_blog( $domain, $path, $weblog_title, $site_id = 1 ) {

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_deprecated_function( __FUNCTION__, '4.4.0' );

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if ( empty($path) )

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$path = '/';

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// Check if the domain has been used already. We should return an error message.

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if ( domain_exists($domain, $path, $site_id) )

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return __( '<strong>Error</strong>: Site URL you&#8217;ve entered is already taken.' );

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/*

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* Need to back up wpdb table names, and create a new wp_blogs entry for new blog.

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* Need to get blog_id from wp_blogs, and create new table names.

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* Must restore table names at the end of function.

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*/

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if ( ! $blog_id = insert_blog($domain, $path, $site_id) )

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return __( '<strong>Error</strong>: There was a problem creating site entry.' );

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switch_to_blog($blog_id);

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install_blog($blog_id);

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restore_current_blog();

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return $blog_id;

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}

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[420] Fix | Delete

/**

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* Get the admin for a domain/path combination.

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*

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* @since MU (3.0.0)

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* @deprecated 4.4.0

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*

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* @global wpdb $wpdb WordPress database abstraction object.

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*

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* @param string $domain Optional. Network domain.

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* @param string $path Optional. Network path.

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* @return array|false The network admins.

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*/

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function get_admin_users_for_domain( $domain = '', $path = '' ) {

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_deprecated_function( __FUNCTION__, '4.4.0' );

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global $wpdb;

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if ( ! $domain ) {

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$network_id = get_current_network_id();

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} else {

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$_networks = get_networks( array(

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'fields' => 'ids',

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'number' => 1,

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'domain' => $domain,

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'path' => $path,

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) );

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$network_id = ! empty( $_networks ) ? array_shift( $_networks ) : 0;

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}

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if ( $network_id )

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return $wpdb->get_results( $wpdb->prepare( "SELECT u.ID, u.user_login, u.user_pass FROM $wpdb->users AS u, $wpdb->sitemeta AS sm WHERE sm.meta_key = 'admin_user_id' AND u.ID = sm.meta_value AND sm.site_id = %d", $network_id ), ARRAY_A );

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return false;

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}

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[455] Fix | Delete

/**

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* Return an array of sites for a network or networks.

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*

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* @since 3.7.0

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* @deprecated 4.6.0 Use get_sites()

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* @see get_sites()

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*

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* @param array $args {

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* Array of default arguments. Optional.

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*

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* @type int|int[] $network_id A network ID or array of network IDs. Set to null to retrieve sites

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* from all networks. Defaults to current network ID.

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* @type int $public Retrieve public or non-public sites. Default null, for any.

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* @type int $archived Retrieve archived or non-archived sites. Default null, for any.

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* @type int $mature Retrieve mature or non-mature sites. Default null, for any.

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* @type int $spam Retrieve spam or non-spam sites. Default null, for any.

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* @type int $deleted Retrieve deleted or non-deleted sites. Default null, for any.

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* @type int $limit Number of sites to limit the query to. Default 100.

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* @type int $offset Exclude the first x sites. Used in combination with the $limit parameter. Default 0.

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* }

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* @return array[] An empty array if the installation is considered "large" via wp_is_large_network(). Otherwise,

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* an associative array of WP_Site data as arrays.

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*/

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function wp_get_sites( $args = array() ) {

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_deprecated_function( __FUNCTION__, '4.6.0', 'get_sites()' );

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if ( wp_is_large_network() )

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return array();

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$defaults = array(

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'network_id' => get_current_network_id(),

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'public' => null,

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'archived' => null,

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'mature' => null,

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'spam' => null,

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'deleted' => null,

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'limit' => 100,

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'offset' => 0,

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);

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$args = wp_parse_args( $args, $defaults );

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// Backward compatibility.

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if( is_array( $args['network_id'] ) ){

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