get_blog_details()WP 3.0.0

Retrieve the details for a blog from the blogs table and blog options.

Hooks from the function

Return

WP_Site|false. Blog details on success. False on failure.

Usage

get_blog_details( $fields, $get_all );
$fields(int|string|array)
A blog ID, a blog slug, or an array of fields to query against.
Default: current blog ID
$get_all(true|false)
Whether to retrieve all details or only the details in the blogs table.
Default: true

Examples

1

#1 Deprecated note

Note that this function was deprecated in favor of get_site().

See: https://make.wordpress.org/core/2016/11/04/multisite-focused-changes-in-4-7/

0

#2 Demo

What the function return:

$details = get_blog_details();

/*
$details = WP_Site Object (
	[blog_id] => 2
	[domain] => site.com
	[path] => /es/
	[site_id] => 1
	[registered] => 2023-09-16 20:18:00
	[last_updated] => 2023-09-16 20:20:15
	[public] => 1
	[archived] => 0
	[mature] => 0
	[spam] => 0
	[deleted] => 0
	[lang_id] => 0
	[blogname] => Site.com ES
	[siteurl] => https://site.com/es
	[post_count] => 
	[home] => https://site.com/es
)
*/

Or if second parameter = false:

$details = get_blog_details( null, false );

/*
stdClass Object
(
	[blog_id] => 2
	[site_id] => 1
	[domain] => site.com
	[path] => /es/
	[registered] => 2023-09-16 20:18:00
	[last_updated] => 2023-09-16 20:20:15
	[public] => 1
	[archived] => 0
	[mature] => 0
	[spam] => 0
	[deleted] => 0
	[lang_id] => 0
)
*/

Get the URL of the current blog:

$details = get_blog_details();
echo $details->siteurl;
0

#3 Getting additional information

Since there is practical needs about getting additional information from multisite like this post, it might worth to note here of what get_blog_details() is returning. It could save people, who is not familiar with WordPress, the time from trying.

By default, the this function only returns the following details of the site.

blogname
siteurl
post_count
home

If in case, need to get other information such as blog description of one of the sites. May achieve by using

get_blog_option( $blog_id, 'blogdescription' );

Reference: get_blog_option()

Notes

  • Global. wpdb. $wpdb WordPress database abstraction object.

Changelog

Since 3.0.0 Introduced.

get_blog_details() code WP 6.5.2

function get_blog_details( $fields = null, $get_all = true ) {
	global $wpdb;

	if ( is_array( $fields ) ) {
		if ( isset( $fields['blog_id'] ) ) {
			$blog_id = $fields['blog_id'];
		} elseif ( isset( $fields['domain'] ) && isset( $fields['path'] ) ) {
			$key  = md5( $fields['domain'] . $fields['path'] );
			$blog = wp_cache_get( $key, 'blog-lookup' );
			if ( false !== $blog ) {
				return $blog;
			}
			if ( str_starts_with( $fields['domain'], 'www.' ) ) {
				$nowww = substr( $fields['domain'], 4 );
				$blog  = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain IN (%s,%s) AND path = %s ORDER BY CHAR_LENGTH(domain) DESC", $nowww, $fields['domain'], $fields['path'] ) );
			} else {
				$blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s AND path = %s", $fields['domain'], $fields['path'] ) );
			}
			if ( $blog ) {
				wp_cache_set( $blog->blog_id . 'short', $blog, 'blog-details' );
				$blog_id = $blog->blog_id;
			} else {
				return false;
			}
		} elseif ( isset( $fields['domain'] ) && is_subdomain_install() ) {
			$key  = md5( $fields['domain'] );
			$blog = wp_cache_get( $key, 'blog-lookup' );
			if ( false !== $blog ) {
				return $blog;
			}
			if ( str_starts_with( $fields['domain'], 'www.' ) ) {
				$nowww = substr( $fields['domain'], 4 );
				$blog  = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain IN (%s,%s) ORDER BY CHAR_LENGTH(domain) DESC", $nowww, $fields['domain'] ) );
			} else {
				$blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s", $fields['domain'] ) );
			}
			if ( $blog ) {
				wp_cache_set( $blog->blog_id . 'short', $blog, 'blog-details' );
				$blog_id = $blog->blog_id;
			} else {
				return false;
			}
		} else {
			return false;
		}
	} else {
		if ( ! $fields ) {
			$blog_id = get_current_blog_id();
		} elseif ( ! is_numeric( $fields ) ) {
			$blog_id = get_id_from_blogname( $fields );
		} else {
			$blog_id = $fields;
		}
	}

	$blog_id = (int) $blog_id;

	$all     = $get_all ? '' : 'short';
	$details = wp_cache_get( $blog_id . $all, 'blog-details' );

	if ( $details ) {
		if ( ! is_object( $details ) ) {
			if ( -1 == $details ) {
				return false;
			} else {
				// Clear old pre-serialized objects. Cache clients do better with that.
				wp_cache_delete( $blog_id . $all, 'blog-details' );
				unset( $details );
			}
		} else {
			return $details;
		}
	}

	// Try the other cache.
	if ( $get_all ) {
		$details = wp_cache_get( $blog_id . 'short', 'blog-details' );
	} else {
		$details = wp_cache_get( $blog_id, 'blog-details' );
		// If short was requested and full cache is set, we can return.
		if ( $details ) {
			if ( ! is_object( $details ) ) {
				if ( -1 == $details ) {
					return false;
				} else {
					// Clear old pre-serialized objects. Cache clients do better with that.
					wp_cache_delete( $blog_id, 'blog-details' );
					unset( $details );
				}
			} else {
				return $details;
			}
		}
	}

	if ( empty( $details ) ) {
		$details = WP_Site::get_instance( $blog_id );
		if ( ! $details ) {
			// Set the full cache.
			wp_cache_set( $blog_id, -1, 'blog-details' );
			return false;
		}
	}

	if ( ! $details instanceof WP_Site ) {
		$details = new WP_Site( $details );
	}

	if ( ! $get_all ) {
		wp_cache_set( $blog_id . $all, $details, 'blog-details' );
		return $details;
	}

	$switched_blog = false;

	if ( get_current_blog_id() !== $blog_id ) {
		switch_to_blog( $blog_id );
		$switched_blog = true;
	}

	$details->blogname   = get_option( 'blogname' );
	$details->siteurl    = get_option( 'siteurl' );
	$details->post_count = get_option( 'post_count' );
	$details->home       = get_option( 'home' );

	if ( $switched_blog ) {
		restore_current_blog();
	}

	/**
	 * Filters a blog's details.
	 *
	 * @since MU (3.0.0)
	 * @deprecated 4.7.0 Use {@see 'site_details'} instead.
	 *
	 * @param WP_Site $details The blog details.
	 */
	$details = apply_filters_deprecated( 'blog_details', array( $details ), '4.7.0', 'site_details' );

	wp_cache_set( $blog_id . $all, $details, 'blog-details' );

	$key = md5( $details->domain . $details->path );
	wp_cache_set( $key, $details, 'blog-lookup' );

	return $details;
}