$('#select_worktype').on('change', function(){
var worktype = $(this).val();
// ******************
$('#select_position').html('<option disabled selected>Выбор формирования</option>');
// *******************
if(worktype) {
$.get(
"ajax.php",
{worktype: worktype},
function (data){
$('#select_workspace').html(data);
}
);
}else{
$('#select_workspace').html('<option disabled selected>Выбор формирования</option>');
}
});$result = "";
foreach ($arr['classes'] as $name => $data) {
$result .= sprintf("Название: %s <br>", $name);
}
echo $result;var_dump(number_format(1.44/10000000, 10));
INSERT INTO table_1 (id, column_2) SELECT id, 'A' FROM table_2 WHERE column_2 = 'B';