Cannot get the info from website into my SQL table

<pre><?php

  session_start();
    include "../../include/connection.php";
	
	
  if ((isset($_POST['db'])) && ($_POST['db'] == 'LifeCoinWatchDB'))
	{

        $sql = mysqli_query($pdo,"SELECT * FROM api_currency ");

        $row = mysqli_fetch_array($pdo);
		
		 $LIVECOINWATCH_API = $row['LIVECOINWATCH_API']; //get info from api.php
		 
		$data = json_encode(array('currency' => 'USD', 'sort' => 'rank', 'order' => 'ascending', 'offset' => 0, 'meta' => false));

		
		$headers = array(
		"content-type: application/json",
		"x-api-key: LIVECOINWATCH_API",
		'content' => $data
		);

		$qs = http_build_query($data); // query string encode the parameters
 
 
		$context = stream_context_create($headers);
		$url= fopen('https://api.livecoinwatch.com/coins/list', 'r', false, $context);
		print_r(stream_get_contents($fp));
    
		$request = "{$url}?{$qs}"; // create the request URL
        
		$curl = curl_init(); // Get Curl resource
 
		curl_setopt_array($curl, array(
        CURLOPT_URL => $request,            // set the request URL
        CURLOPT_HTTPHEADER => $headers,     // set the headers 
        CURLOPT_RETURNTRANSFER => 1         // ask for raw response instead of bool
        )); 

       $response = curl_exec($curl); // Send the request, save the response

       curl_close($curl); // Close request     



       $decoded_json_lifecoinwatch = json_decode($response, true);// use from index.php
		
	foreach($decoded_json_livecoinwatch['data'] as $livecoinwatch)// use from index.php
		{

           $LIFECOINWATCH_code = $livecoinwatch['code'];
            $LIFECOINWATCH_name = $livecoinwatch['name'];
          
            $LIFECOINWATCH_name = htmlentities($LIFECOINWATCH_name, ENT_QUOTES, "UTF-8");		
			$checkSql = mysqli_query($pdo,"SELECT * FROM lcw_munt_lys WHERE CODE = '$LIFECOINWATCH_code' ") or die(mysqli_error($pdo));
            $checkSqlCount = mysqli_num_rows($checkSql);

            if($checkSqlCount > 0){
              
            }
            else{

				$insertSql = mysqli_query($pdo,"INSERT INTO lcw_munt_lys (CODE, NAME) VALUES('$LIFECOINWATCH_code', '$LIFECOINWATCH_name')") or die(mysqli_error($pdo));
			}
		}
	}
?>

<pre>$data = json_encode(array('currency' => 'USD', 'sort' => 'rank', 'order' => 'ascending', 'offset' => 0, 'limit' => 2,'meta' => false));
$context_options = array (
    'http' => array (
        'method' => 'POST',
        'header' => "Content-type: application/json\r\n"
            . "x-api-key: <YOUR_API_KEY>" . "\r\n",
        'content' => $data
    )
);
$context = stream_context_create($context_options);
$fp = fopen('https://api.livecoinwatch.com/coins/list', 'r', false, $context);
print_r(stream_get_contents($fp));

<pre><script>

            $(document).ready(function(){
			
			 $('#LifeCoinWatchDB').on('click', function() {


                    $.ajax({
                        type:'POST',
                        url:'updateDatabase/db.php',
                        // dataType: 'json',
                        data:{db:"LifeCoinWatchDB"},
                        beforeSend: function(){
                            $("#loaders2").show();
                        },
                        complete: function(){
                            $("#loaders2").hide();
                        },
                        success:function(data) {
                            
                            $("#LifeCoinWatchUpdate").html("Database updated");
                            
                        },
                        error: function (error) {
                            $("#LifeCoinWatchUpdate").html(error);
                        }
                    });

                });

            });
		
	</script>	

<pre><p>
                                            <button class="btn btn-success btn-lg" id="LifeCoinWatchDB">LifeCoinWatch DB</button> 
                                            <span id="LifeCoinWatchUpdate"></span>  
                                            <span id="loaders2" style="display:none;">
                                                <img alt="" src="../assets/img/loader/loada.gif">   
										
                                            </span>
                                            
                                        </p>