A value is expected to be in well-known text format, but there is no validation on client side.
Polygons areoriented.
It means that, for example, valuePOLYGON((0 0, 1 0, 1 1, 0 1, 0 0))represents a (almost) square region,
andPOLYGON((0 0, 0 1, 1 1, 1 0, 0 0))represents the whole Earth surface except that square.
Example:
use Google\Cloud\BigQuery\BigQueryClient;
$bigQuery = new BigQueryClient();
$geography = $bigQuery->geography('POINT(30 60)');
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,[]]