$query = "INSERT INTO TB_RADIOLOGI (ID_PASIEN, ID_PENDAFTARAN, TGL_PERMINTAAN, JENIS_PERMINTAAN) VALUES(?, ?, ?, ?);";

foreach($_POST['JENIS_PERMINTAAN'], reverse_tanggal($_POST['TGL_PERMINTAAN']) as $idx=>$val){
        $params = array($_POST['ID_PASIEN'], $_POST['ID_PENDAFTARAN'], $val );  //--disini input id_pasien=0001 sesuai contoh di form
    sqlsrv_query($GLOBALS['conn'], $query, $params);
}

there is an error : Parse error: syntax error, unexpected ',' in 

Please help

Your mistake is comma after $_POST['JENIS_PERMINTAAN']. If you want to handle as array $_POST['JENIS_PERMINTAAN'], reverse_tanggal($_POST['TGL_PERMINTAAN']) then include it in square brackets

foreach([$_POST['JENIS_PERMINTAAN'], reverse_tanggal($_POST['TGL_PERMINTAAN'])] as $idx=>$val){
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