}
return $url;
}
+
+/**
+ * Get a numeric user ID from either an email address or a login.
+ *
+ * A numeric string is considered to be an existing user ID
+ * and is simply returned as such.
+ *
+ * @since MU
+ * @deprecated 3.6.0
+ * @deprecated Use get_user_by()
+ * @uses get_user_by()
+ *
+ * @param string $string Either an email address or a login.
+ * @return int
+ */
+function get_user_id_from_string( $string ) {
+ _deprecated_function( __FUNCTION__, '3.6', 'get_user_by()' );
+
+ if ( is_email( $string ) )
+ $user = get_user_by( 'email', $string );
+ elseif ( is_numeric( $string ) )
+ return $string;
+ else
+ $user = get_user_by( 'login', $string );
+
+ if ( $user )
+ return $user->ID;
+ return 0;
+}