Gets blog prefix.

Parameters

$blog_idintoptional

Blog ID to retrieve the table prefix for.
Defaults to the current blog ID.

Default:null

Return

Source

public function get_blog_prefix( $blog_id = null ) {
	if ( is_multisite() ) {
		if ( null === $blog_id ) {
			$blog_id = $this->blogid;
		}

		$blog_id = (int) $blog_id;

		if ( defined( 'MULTISITE' ) && ( 0 === $blog_id || 1 === $blog_id ) ) {
			return $this->base_prefix;
		} else {
			return $this->base_prefix . $blog_id . '_';
		}
	} else {
		return $this->base_prefix;
	}
}

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