str-apis.php

function callStreamlineAPI($methodName, $params) {

    #API Token
    $token = '**************************';
    #API Token_Secret
    $token_secret = '********************************';
    #API Endpoint
    $endpoint = 'https://web.dataprovider.com/api/json';

    $body=array();

    $params['token_secret'] = $token_secret;
    $params['token_key'] = $token;

    $body['methodName'] = $methodName;
    $body['params'] = $params;
    $body = json_encode($body, JSON_UNESCAPED_SLASHES);

    $curl = curl_init();

    curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
    curl_setopt($curl, CURLOPT_POSTFIELDS, $body);
    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_URL, $endpoint);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

    $result = curl_exec($curl);

    if($result === false) {

        return 'Curl error: ' . curl_error($curl);

    } else {

        return $result;

    }

    curl_close($curl);

}

function getPropertyList(){
    $params = array();
    $params['status_id'] = 1;

    $test = callStreamlineAPI('GetPropertyList', $params );

    print_r($test);

    $test = json_encode($test, JSON_PRETTY_PRINT);
    echo "<script>console.log($test)</script>";
    echo $test;

}