add_site_meta() – Function | Developer.WordPress.org

add_site_meta( int $site_id, string $meta_key, mixed $meta_value, bool $unique = false ): int|false

Adds metadata to a site.

Parameters

$site_idintrequired

Site ID.

$meta_keystringrequired

Metadata name.

$meta_valuemixedrequired

Metadata value. Arrays and objects are stored as serialized data and will be returned as the same type when retrieved. Other data types will be stored as strings in the database:

false is stored and retrieved as an empty string ('')
true is stored and retrieved as '1'
numbers (both integer and float) are stored and retrieved as strings Must be serializable if non-scalar.

$uniquebooloptional

Whether the same key should not be added.

Default:false

Return

int|false Meta ID on success, false on failure.

Source

function add_site_meta( $site_id, $meta_key, $meta_value, $unique = false ) {
	return add_metadata( 'blog', $site_id, $meta_key, $meta_value, $unique );
}

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Uses	Description
add_metadata()`wp-includes/meta.php`	Adds metadata for the specified object.

Changelog

Version	Description
5.1.0	Introduced.

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