Quickly mute or unmute multiple checks in bulk using this small PHP page made by Eric Bouquerel from Bol d'Air (@Boldairdev)

reqchecks.css

            body {
                font-family: sans-serif;
            }
            header, .params, .submit {
                margin: 0 auto;
                width: 100%;
                text-align: center;
                color :#3d5b76;
                padding-bottom: 25px;
            }
            .submit {
                padding-top: 25px;
            }
            .btn-primary {
                background-color: #3d5b76;
                color: #fff;
                padding: 8px;
                border: 1px solid white;
                border-radius: 4px;
                font-weight: 600;
            }
            .btn-primary:hover {
                background-color:#fff ;
                color: #3d5b76;
                padding: 8px;
                border: 1px solid #3d5b76;
                border-radius: 4px;
                font-weight: 600;
            }
            table {
                border-collapse: collapse;
                border: 0;
                margin: 0 auto;

            }
            th, td {
                border-collapse: collapse;
                padding: 15px;

                text-align: left;
                font-weight: normal;
                margin: 0;
            }
            th,td {
                border-collapse: collapse;
                border-top: 1px solid #888;
                border-bottom:  1px solid #888;
            }
            th.left, td.left {
                border-collapse: collapse;
                border: 0;
                border-bottom: 1px solid #888;
                border-left:   1px solid #888;
            }
            th.right, td.right{
                border-collapse: collapse;
                border: 0;
                border-bottom: 1px solid #888;
                border-right:   1px solid #888;
            }
            th.left, th.right {
                border-top: 1px solid #888;
            }
            th {
                background-color: #3d5b76;
                color: #fff;
            }

            tr:nth-child(even) {
                background-color: Lightblue;
            }

reqchecks.php

<?php
// call the request Class that will actually communicate with the API
require "RestRequest.inc.php";
/* Get the APIKey set intentionally above Document Root, so it's never directly accessible;
   (the file just contains '<?php $api_key="xxxxxxxxxxx"; ?>'
*/
require "../updownapi.php";
// prepare the needed parameters to communicate with the api
$base_url = "https://updown.io/api/";
$request = new RestRequest();
$request->setApiKey($api_key);
$request->addCurlHeader('X-API-KEY', $api_key);
$request->addCurlHeader('Accept', $request->getAcceptType());

// grab the list of existing checks
// $request = new RestRequest($base_url.'checks?api-key='.$api_key, 'GET');
//
function getAllChecks () {
        global $request;
        global $base_url;
        $request->setUrl($base_url.'checks');
        $request->setVerb('GET');
        $request->execute();
        $allchecks = json_decode( $request->getResponseBody() );
        return $allchecks;

}
if(isset($_POST['posted'])) {
    foreach ($_POST as $key => $value) {
        $$key = $value;
    }
    // checking the mute duration parameter
    //
    if (!isset($mutefor)){
        $arg = array('mute_until'=>'');
    } else {
        if ($mutefor =='') {
            $arg = array('mute_until'=>'');
        } else {
            $t = time();
            $t2 = $t +$mutefor;
            $now = date('c',$t);
            $until = date('c',$t2);
            $arg = array('mute_until'=>$until);
        }
    }

    $returned = array() ;

    if(isset ($tokens)) {
        for ($i=0; $i < count($tokens); ++$i) {
           $request->setRequestBody($arg);
           $request->setVerb('PUT');
           $request->setUrl($base_url.'checks/'.$tokens[$i]);
           $request->execute();
           $returned[$i] = json_decode($request->getResponseBody());
        }
        //reget the checks acfter muting
        $allchecks=array();
        $request->flush();

        $allchecks = getAllChecks();
        $formstr= '<table><thead><th class="left"><input type="checkbox" id="checkall" value=""/></th><th>check</th><th class="right">Mute Until</th></thead><tbody>';
        for ($i=0; $i < count($allchecks) ; $i++) {
            $formstr.='<tr><td class="left"><input type="checkbox" class="tk" name="tokens[]" id="token'.$i.'" value="'. $allchecks[$i]->token .'"></td>
            <td>'. $allchecks[$i]->alias .' ('. $allchecks[$i]->url .')</td><td class="right">'. $allchecks[$i]->mute_until .'</td></tr>';
        }
        $formstr.='</tbody></table>';


    }
} else {
    $allchecks=array();
    $request->flush();
    $allchecks = getAllChecks($base_url);
    $formstr= '<table><thead><th class="left"><input type="checkbox" id="checkall" value=""/></th><th>check</th><th class="right">Mute Until</th></thead><tbody>';

    for ($i=0; $i < count($allchecks) ; $i++) {

    $formstr.='<tr><td class="left"><input type="checkbox" class="tk" name="tokens[]" id="token'.$i.'" value="'. $allchecks[$i]->token .'"></td><td>'. $allchecks[$i]->alias .' ('. $allchecks[$i]->url .')</td><td class="right">'. $allchecks[$i]->mute_until .'</td></tr>';
}
    $formstr.='</tbody></table>';
}

?>
    <!DOCTYPE html>
    <html>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Mute/Unmute Updown.io checks</title>
        <link rel="stylesheet" type="text/css" href="reqchecks.css">
        <script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
    </head>
    <body>

        <header>
            <h1>Mute / Unmute Updown.io Alerts</h1>
            <p> Use this form to mute alerts from updown.io</p>
        </header>


    <form action="<?php echo $_SERVER['PHP_SELF'] ;?>" method="post">
        <div id="params" class="params">
            <select name="mutefor">
                <option value="" selected>Unmute</option>
                <option value="600">10 minute</option>
                <option value="1200">20 minute</option>
                <option value="1800">30 minute</option>
                <option value="3600">1 hour</option>
            </select>
        </div>
        <div id="checkslist">
            <?php echo $formstr;?>
        </div>
        <div id="submit" class="submit">
            <input type="hidden" name="posted" value="posted">
            <input type="submit" name="submit" class="btn-primary">
        </div>
    </form>
    <script type="text/javascript">
        $(document).ready(function() {

            $('#checkall').click(
              function() {
                if( $('#checkall').prop('checked') ) {
                    $('#checkslist .tk').prop('checked', true);
                } else {
                    $('#checkslist .tk').prop('checked', false);
                }
             });
        });
    </script>
    </body>
    </html>

RestRequest.inc.php

<?php

class RestRequest
{
	protected $url;
	protected $verb;
	protected $requestBody;
	protected $requestLength;
	protected $apiKey;
	protected $username;
	protected $password;
	protected $acceptType;
	protected $responseBody;
	protected $responseInfo;
	protected $curlHttpHeaders;

	public function __construct ($url = null, $verb = 'GET', $requestBody = null)
	{
		$this->url				= $url;
		$this->verb				= $verb;
		$this->requestBody		= $requestBody;
		$this->requestLength	= 0;
		$this->username			= null;
		$this->password			= null;
		$this->acceptType		= 'application/json';
		$this->responseBody		= null;
		$this->responseInfo		= null;
		$this->apiKey 			= null;
		$this->curlHttpHeaders	= null;

		if ($this->requestBody !== null)
		{
			$this->buildPostBody();
		}
	}

	public function flush ()
	{
		$this->requestBody		= null;
		$this->requestLength	= 0;
		$this->verb				= 'GET';
		$this->responseBody		= null;
		$this->responseInfo		= null;
	}

	public function execute ()
	{
		$ch = curl_init();
		$this->setAuth($ch);

		try
		{
			switch (strtoupper($this->verb))
			{
				case 'GET':
					$this->executeGet($ch);
					break;
				case 'POST':
					$this->executePost($ch);
					break;
				case 'PUT':
					$this->executePut($ch);
					break;
				case 'DELETE':
					$this->executeDelete($ch);
					break;
				default:
					throw new InvalidArgumentException('Current verb (' . $this->verb . ') is an invalid REST verb.');
			}
		}
		catch (InvalidArgumentException $e)
		{
			curl_close($ch);
			throw $e;
		}
		catch (Exception $e)
		{
			curl_close($ch);
			throw $e;
		}

	}

	public function buildPostBody ($data = null)
	{
		$data = ($data !== null) ? $data : $this->requestBody;

		if (!is_array($data))
		{
			throw new InvalidArgumentException('Invalid data input for postBody.  Array expected');
		}
		$data = http_build_query($data, '', '&');

		$this->requestBody = $data;
	}

	protected function executeGet ($ch)
	{
		$this->doExecute($ch);
	}

	protected function executePost ($ch)
	{
		if (!is_string($this->requestBody))
		{
			$this->buildPostBody();
		}

		curl_setopt($ch, CURLOPT_POSTFIELDS, $this->requestBody);
		curl_setopt($ch, CURLOPT_POST, 1);

		$this->doExecute($ch);
	}

	protected function executePut ($ch)
	{
		if (!is_string($this->requestBody))
		{
			$this->buildPostBody();
		}

		$this->requestLength = strlen($this->requestBody);

		// $fh = fopen('php://memory', 'rw');
		// fwrite($fh, $this->requestBody);
		// rewind($fh);

		curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");
		curl_setopt($ch, CURLOPT_POSTFIELDS, $this->requestBody);
//		curl_setopt($ch, CURLOPT_INFILE, $fh);
//		curl_setopt($ch, CURLOPT_INFILESIZE, $this->requestLength);
//		curl_setopt($ch, CURLOPT_PUT, true);

		$this->doExecute($ch);

		//fclose($fh);
	}

	protected function executeDelete ($ch)
	{
		curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'DELETE');

		$this->doExecute($ch);
	}

	protected function doExecute (&$curlHandle)
	{
		$this->setCurlOpts($curlHandle);
		$this->responseBody = curl_exec($curlHandle);
		$this->responseInfo	= curl_getinfo($curlHandle);

		curl_close($curlHandle);
	}

	protected function setCurlOpts (&$curlHandle)
	{
		curl_setopt($curlHandle, CURLOPT_TIMEOUT, 10);
		curl_setopt($curlHandle, CURLOPT_URL, $this->url);
		curl_setopt($curlHandle, CURLOPT_RETURNTRANSFER, true);

		if (!is_null($this->curlHttpHeaders)) {
			curl_setopt($curlHandle, CURLOPT_HTTPHEADER, $this->curlHttpHeaders);
		}
	}

	protected function setAuth (&$curlHandle)
	{
		if ($this->username !== null && $this->password !== null)
		{
			curl_setopt($curlHandle, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
			curl_setopt($curlHandle, CURLOPT_USERPWD, $this->username . ':' . $this->password);
		}
	}

	public function addCurlHeader($label, $value) {
		$this->curlHttpHeaders[] = $label.':'.$value;
	}
	public function getCurlHeaders() {
		return $this->curlHttpHeaders;
	}
	public function getAcceptType ()
	{
		return $this->acceptType;
	}

	public function setAcceptType ($acceptType)
	{
		$this->acceptType = $acceptType;
	}

	public function getRequestBody ()
	{
		return $this->requestBody;
	}

	public function setRequestBody ($requestBody)
	{
		$this->requestBody = $requestBody;
	}

	public function getApiKey ()
	{
		return $this->apiKey;
	}

	public function setApiKey ($apiKey)
	{
		$this->apiKey = $apiKey;
	}

	public function getPassword ()
	{
		return $this->password;
	}

	public function setPassword ($password)
	{
		$this->password = $password;
	}

	public function getResponseBody ()
	{
		return $this->responseBody;
	}

	public function getResponseInfo ()
	{
		return $this->responseInfo;
	}

	public function getUrl ()
	{
		return $this->url;
	}

	public function setUrl ($url)
	{
		$this->url = $url;
	}

	public function getUsername ()
	{
		return $this->username;
	}

	public function setUsername ($username)
	{
		$this->username = $username;
	}

	public function getVerb ()
	{
		return $this->verb;
	}

	public function setVerb ($verb)
	{
		$this->verb = $verb;
	}
}