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Sending lots of data through POST or GET

Answer 1

A:

Setting the data option on ajax calls means jquery will add these to the query string in a GET request. Most browsers have a limit on the length of a get request. If your xml data is too big, you should switch to POST.

Marco 2010-09-15 14:13:24

The limit on GET imposed by browsers used to be about 4K generally, maybe it still is. I stopped using GET for anything heavyweight when I discovered that.

Mark Chorley 2010-09-15 14:17:50

Answer 2

+1 A:

Most browsers have a practical maximum of 2,083 characters in the url; there is no limit for a POST request. A GET request will pass the parameters in the url whereas a post does not. It all depends on how much you're actually sending to determine which you should use or if you're sending sensitive data (use POST).

mjw06d 2010-09-15 14:18:23

Answer 3

A:

Optimize your php.ini

post_max_size you may have to set your memory_limit to higher value..
depends on the memory usage of your
script also
max_execution_time could be a problem

Flave 2010-09-15 14:18:53

Answer 4

+3 A:

Change

method: "POST"

to

type: "POST"

that may do the trick.

BenSho 2010-09-15 14:24:43

ya beat me to it! I always that "type" _should_ be "method"...it would make sense

David Murdoch 2010-09-15 14:28:08

Yeah, thanks! :)

Codemonkey 2010-09-15 14:53:01

Answer 5

A:

try this:

$("#btn_save").click(function() {
    var data = $("#textfield").text();
    $.ajax({
        url:        "validate.php",
        type:       "POST",
        data:       {"xml": data},
        complete:   function(e) { alert(e.responseText); }
    });
});

David Murdoch 2010-09-15 14:27:23

Answer 6

A:

BenSho is correct, the argument is called type. In addition:

$("#textfield").text()

I'm guessing that's a <textarea>. You shouldn't use text() or html() to read content from an input field, it doesn't do what you think. Use val().

var data = escape($("#textfield").text());

Don't ever use escape(). It is a weirdo JavaScript-specific function that looks like URL-encoding but isn't. If you use it for URL-encoding you will corrupt plus signs and all non-ASCII characters.

The correct JavaScript function for URL-encoding is encodeURIComponent(). However, since you are using jQuery, much better to let it work out URL-encoding for you by passing an object in:

data: {xml: $("#textfield").text()},

Finally:

$data = urldecode($_POST["xml"]);

You don't have to (and shouldn't) URL-decode anything manually. PHP URL-decodes parameters in a request body into raw strings for you.

bobince 2010-09-15 15:17:46

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Sending lots of data through POST or GET

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