Encoder Url Online

I want to pass a few body parameters using x-www-form-urlencoded format using powershell invoke-restmethod. Do not that this is working fine in PostMan. My code for this is below but is not working. How do I accomplish this in powershell?

$param = [System.Web.HttpUtility]::UrlEncode("channel:channelIDContent-Type:application/x-www-form-urlencodedlimit:50")$uri="https://MySlackWebsite.com/api/channels.history"$test2 = Invoke-RestMethod -Method POST -Uri $uri -Headers $headerJson -Body $param

I am wanting to url encode a string with Javascript, with the relevant part of the code being:

this.options[this.selectedIndex].value

or the full line:

<select name="category" onChange="javascript:document.location.href='<? echo '/' . $state . '/dir/'; ?>' + this.options[this.selectedIndex].value;">

How can I url encode this with JS and then safely decode it with PHP using urldecode?

I have been looking up information to ensure that I encode a user-entered URL correctly. I found some scattered information, including:

• https://docs.oracle.com/javase/8/docs/api/java/net/URLEncoder.html
• Which parts of a URL need to be encoded?

I cannot figure out what part and how this URL, for instance, should be encoded.

https://username@example.com:password@host:10080/some/path/to/resource

What about if there are queries? And any other things I need to make sure to do correctly? Examples would be great.

Only thing I am sure of is that I need to encode username and password separately as stated here: https://www.baeldung.com/java-url-encoding-decoding

I'm using multi country search using get method php. In my first page i'm using this code for ex: <select id="country" name="nationality[]" multiple="multiple" class="form-control">

In my result page the url is encoded as: url?name=Ganesh&nationality%5B%5D=Italian&nationality%5B%5D=French

if(isset($_GET['nationality'])) {    $are='all';    if($_GET['nationality']!=$are) {        $loc = $_GET['nationality'];        $nationality = array($loc);        $comma_separated = implode(",", $nationality);        $items = preg_split("/[,\\t]+/", $comma_separated);        $sqlItems = array();        foreach ($items as $item) {            $sqlItems []= "'" . ($item). "'";        }    }}

Does anybody know how to properly define a curl GET in PHP, for receiving data from the crunchbase API (v3.1) when there are special characters like french accents or umlauts?

I've tried replacing obvious characters with their "original forms", like ö -> o or ö -> oe or left them out completely. And of course I tried encoding the part (or the whole url) with IDN, didn't work (w%C3%BCnsche). rawurlecode() also did not work.Interstingly enough, the official provided api link for the guy below also includes umlauts.

// This is an example name that causes the problem$name = 'jan-wünsche';// base url and key$url = 'https://api.crunchbase.com/v3.1/people/' . urlencode($name) . '? user_key=' . $KEY;$curl = curl_init();curl_setopt_array($curl, [    CURLOPT_RETURNTRANSFER => 1,    CURLOPT_URL => $url]);$result = curl_exec($curl);curl_close($curl);

Instead of his profile, I get "No Mapping Rule matched".

Does anyone know how encode special chars here with the crunchbase API? Thanks a lot!