functions.php

function super_json_decode($json, &$value, $assoc = false, $depth = 512, $options = 0) {
    $pValue = false;
    $result = json_decode($json, $assoc, $depth);
    if(json_last_error() == JSON_ERROR_NONE) {
        $pValue = $result;
        return true;
    }
    return false;
}

function get_google_direction($origin, $destination) {
    $ch = curl_init('http://maps.googleapis.com/maps/api/directions/json?origin='.$origin.'&destination='.$destination.'&sensor=false');
    curl_setopt_array($ch, array(
        CURLOPT_CONNECTTIMEOUT => 10,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_TIMEOUT        => 60,
    ));

    $response = false;
    if(super_json_decode(curl_exec($ch), $data)) {
        $response = $data;
    }

    $info = curl_getinfo($ch);
    if($data['info']['http_code'] !== 200) {
        return false;
    }

    return $response;
}