function searchImage($iata) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "https://www.flickr.com/search/?sort=interestingness-desc&advanced=1&dimension_search_mode=min&height=1024&width=1024&orientation=landscape&media=photos&text=" . $iata . " city");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_HEADER, FALSE);
    $response = curl_exec($ch);
    curl_close($ch);
    preg_match("/view photo-list-photo-view [.*?] url\((.*?)\)/", $response, $q);
    $url_photo = $q[1];
    echo $url_photo;
}