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Code: Selecteer alles

<?php
namespace KiyOh;

/**
 * Cached KiyOh Widget
 *
 * @author  Ward van der Put <Ward.van.der.Put@gmail.com>
 * @license http://www.gnu.org/licenses/gpl.html GPLv3
 * @version 1.0.0-beta.1
 */
class Widget
{
    /**
     * @type string KIYOH_WIDGET_URI
     *     Set this path to a company-specific URL.
     */
    const KIYOH_WIDGET_URI = 'https://www.kiyoh.nl/widget.php?company=2768';

    /**
     * @type string $Document
     */
    private $Document = '';

    /**
     * Constructor
     *
     * @param void
     * @return void
     */
    public function __construct()
    {
        $this->update();
        $this->setDocument();
    }

    /**
     * Convert the widget object to a string.
     *
     * @param void
     * @return string
     */
    public function __toString()
    {
        return $this->getDocument();
    }

    /**
     * Display the KiyOh HTML page.
     *
     * @param void
     * @return string
     */
    public function getDocument()
    {
        return $this->Document;
    }

    /**
     * Load the KiyOh HTML page.
     *
     * @param void
     * @return void
     */
    private function setDocument()
    {
        // First try to get todays cache file
        $cache_file = 'kiyoh_cache_' . date('Ymd') . '.txt';
        if (file_exists($cache_file)) {
            $this->Document = file_get_contents($cache_file);
            return;
        }

        // Next try to get older cache files
        for ($days = -1; $days > -7; $days--) {
            $cache_file = 'kiyoh_cache_' . date('Ymd', strtotime($days . ' day')) . '.txt';
            if (file_exists($cache_file)) {
                $this->Document = file_get_contents($cache_file);
                return;
            }
        }
    }

    /**
     * Update the KiyOh widget cache.
     *
     * @param void
     *
     * @return null|bool
     *     Returns null if the cache does not need to be updated.  Returns
     *     false if the cURL connection fails and the cache could not be
     *     updated, otherwise true.
     */
    private function update()
    {
        $cache_file = 'kiyoh_cache_' . date('Ymd') . '.txt';
        if (file_exists($cache_file)) {
            return null;
        }

        // Create a cURL request handler
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, self::KIYOH_WIDGET_URI);
        curl_setopt($ch, CURLOPT_FRESH_CONNECT, true);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

        // Handle the cURL request
        $response = curl_exec($ch); 
        if ($response === false) {
            return false;
        } else {
            curl_close($ch);
            unset($ch);
        }

        // Cache the response in a file cache
        if (empty($response)) {
            return false;
        } else {
            $fh = fopen($cache_file, 'w');
            if ($fh === false) {
                return false;
            } elseif (fwrite($fh, $response) === false) {
                return false;
            } else {
                fclose($fh);
                return true;
            }
        }
    }
}

Code: Selecteer alles

<?php
// Load the KiyOh widget class file:
// point the path to a location in your library
require 'Widget.php';

// Display the cached KiyOh widget
$kiyoh_widget = new \KiyOh\Widget();
echo $kiyoh_widget->getDocument();