'subjectList' => [] ); $handler = new DataHandler(); if(isset($_POST['background'])) { try { switch ($_POST['background']) { case 'All': $result['subjectList'] = $handler->getSubjectListAll(); break; case 'General': $result['subjectList'] = $handler->getSubjectListGeneral(); break; case 'GeneralSci': $result['subjectList'] = $handler->getSubjectListGeneralSci(); break; case 'GeneralCom': $result['subjectList'] = $handler->getSubjectListGeneralCom(); break; case 'GeneralArts': $result['subjectList'] = $handler->getSubjectListGeneralArts(); break; case 'MadrasaSci': $result['subjectList'] = $handler->getSubjectListMadrasaSci(); break; case 'MadrasaGen': $result['subjectList'] = $handler->getSubjectListMadrasaGen(); break; case 'English': $result['subjectList'] = $handler->getSubjectListEnglish();