How to send a boolean value by GM_xmlhttpRequest?

Question

I have a problem with form in Greasemonkey . I want to send a boolean value usign GM_xmlhttpRequest, but if I send:

GM_xmlhttpRequest({
  method: "POST",
  url: "http://localhost/test.php",
  data: "confirm=true",
  headers: {
    "Content-Type": "application/x-www-form-urlencoded"
  },
  onload: function(response) {
    console.log(response.responseText);
  }
});

Test php:

var_dump( $_POST );

At the console I see:

array(1) { ["confirm"]=> string(4) "true" }

How can I solve this problem ?

Your server side will need to interpret the value and convert it into the data type you want. All data passed to the server comes in as a string. — Will P., Dec 22 '16 at 18:54

score 1 · Accepted Answer · answered Dec 22 '16 at 18:59

1

Just convert the value to Boolean on the server side - you already have the value.

You can either do a straight $myVar = $_POST["confirm"] === "true";

or use filter_var with the FILTER_VALIDATE_BOOLEAN flag, to cover more options:

$myVar = filter_var($_POST["confirm"], FILTER_VALIDATE_BOOLEAN); - this allows you to cover true, TRUE, on, yes, etc. - all interpreted as Boolean true.

answered Dec 22 '16 at 18:59

Traveling Tech Guy

27,194
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111
159

Thanks for your answer. I wanted to test this because on the webpage in my job I've checked the network bookmark and I saw : – New One Dec 22 '16 at 19:11
searchIds:["237thff66"] search:true – New One Dec 22 '16 at 19:11
type of them in chrome :array and boolean – New One Dec 22 '16 at 19:12
And I want to know,how it is possible ? – New One Dec 22 '16 at 19:12
How can I send the array by post method. Array ,not string – New One Dec 22 '16 at 19:13
I don't see how is this connected to the original question, but you might want to look at this question: https://stackoverflow.com/questions/34313657/html-form-post-an-array-of-objects – Traveling Tech Guy Dec 22 '16 at 19:19

score 0 · Answer 2 · answered Jan 10 '21 at 09:49

0

Since you're sending the data in as JSON, all you need to do is decoding the post value similar to:

$var = json_decode($_POST['some_param']);

This way you'll get the correct type.

answered Jan 10 '21 at 09:49

Salih Kavaf

897
9
17

How to send a boolean value by GM_xmlhttpRequest?

2 Answers2