isValidFor('api')) { die(json_encode(['success' => false])); } $wkSqlQuery = "SELECT DISTINCT" ." `wkParticipo_Users`.* " ." FROM `wkParticipo_Users`" ." JOIN `vormundschaft`" ." ON `wkParticipo_Users`.`id` =`vormundschaft`.`userId`" ." JOIN `wkParticipo_user<=>userAttributes`" ." ON `wkParticipo_user<=>userAttributes`.`userId` = `vormundschaft`.`kidId`" ." WHERE `wkParticipo_user<=>userAttributes`.`attributeId` = 4" ." ORDER BY `wkParticipo_Users`.`id` ASC;"; $wkSqlResponse = dbConnector::query($wkSqlQuery); foreach( $wkSqlResponse as &$user){ $user['eMail'] = explode(",", $user['eMail']); } header('Access-Control-Allow-Headers: *'); header('Access-Control-Allow-Origin: *'); echo( json_encode($wkSqlResponse) // json_encode(getallheaders()) // json_encode($_SERVER) );