Find cover-url for game

Im trying to find the cover-url for images with php (eg. Wave Race 64)
Could I get some help with the code for this? Anyone with an example?

  
You need to send a URL request by either searching the game by title or by sending a request for a particular game. Normally a good starting point is to use the Search resource, then if you need more information send another request to the Game resource.
  
Search resource:
http://api.giantbomb.com/search/?api_key=API_KEY&query=wave%20race%2064&field_list=name,image&format=json     
 
 Game resource: 
http://api.giantbomb.com/game/11969/?api_key=API_KEYc&field_list=name,image&format=json  
 
You will then get back a collection of URLs containing images (varying sizes) that should be used for the games main cover image.  
 
In order to send a URL request in php I believe you need to send a GET request using $_GET 

    // Use cURL if possible
    if ( function_exists( 'curl_init' ) ) {
        $ch = curl_init( $apiString );
        curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 );
        curl_setopt( $ch, CURLOPT_USERAGENT, $userAgent );
        $apiResults = curl_exec( $ch );
        curl_close( $ch );
    } else {
        $apiResults = file_get_contents( $apiString );
    }
    $apiResultsArray = json_decode( $apiResults );