jQuery $.getJSON?

Question

JavaScript

Good afternoon.
I pass the value of the textarea field to the php script via $.getJSON

$.getJSON("./ajax/data.php",
  {
    comment  : $("#comment").val()
  },
  function(data) {
    ...
  });

If $("#comment").val() <= 512 is long, everything is fine, but with >512 in the php script I get an empty variable value.
Can you please tell me how to transfer a text longer than 512 characters in this case?

Answer 1

The problem appears due to the limitation of the query string GET request to 512 bytes. It's better to use POST, for example:

$.ajax({
    url: './ajax/data.php',
    type: 'POST',
    data: {comment: $("#comment").val()},
    dataType: 'json',
    success: function(data) {
        //...
    }
})

Answer 2

 $.post("./ajax/data.php",
    {
        comment  : $("#comment").val()
    },
    function(data) {
        ...
    },"json");

maybe so?

Answer 3

Perhaps some suhosin cuts off. It happens to him, see the config.