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Zurück & Vor Button (Vor fehlt noch)

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1. Autor dieses Themas

   laex630

   laex630 hat kostenlosen Webspace.

   22:18, 19.10.2015

   Hallo,
   
   ich habe ein Plugin, bräuchte da drin noch ein "Vor" Button, bisher habe ich nur Zurück:
   
   

   <?php
   /*
   Plugin Name: wpbackbutton
   Plugin URI: http://no-plugin-site-available
   Description: Enables a back button that reverse engineers the users navigation to enable a simple "back" button on every page.
   Version: 0.2
   Author: Marc Dix
   Author URI: http://www.dixpix.de
   Author Email: marcdix@marcdix.de
   */
   class WP_back_button {
       const name         = 'wpbackbutton';
       const slug         = 'wpbackbutton';
       private $savedURLs = array();
   
       function __construct() {
           $this->init_plugin_constants();
           $this->init_shortcodes();
           add_action( 'init', array( $this, 'addAndRemoveURLs') );
       }
   
       function addAndRemoveURLs() {
           $mainpageURL = home_url() . '/';
           $currentURL  = $this->getCurrentURL();
   
           if ($this->cookieDoesntExist()) {
               if ($mainpageURL == $currentURL) {
                   $this->addURLToStack($mainpageURL);
                   $this->writeCookie();
                   return;
               }
   
               $this->addURLToStack($mainpageURL);
               $this->addURLToStack($currentURL);
               $this->writeCookie();
               return;
           }
   
           // navigated to the start - remove all urls: "restart" - no back button
           if ($mainpageURL == $currentURL) {
               $this->addURLToStack($mainpageURL);
               $this->writeCookie();
               return;
           }
   
           $this->savedURLs = $this->getUnserializedStackFromCookie();
           // back button has been used
           if ($this->getSecondToTheLastSavedURL() == $currentURL) {
               $this->removeLastURLFromStack();
               $this->writeCookie();
               return;
           }
   
           // new page has been entered
           if ($this->getLastURL() != $this->getCurrentURL()) {
               $this->addURLToStack($this->getCurrentURL());
               $this->writeCookie();
               return;
           }
       }
   
       private function writeCookie() {
           setcookie('wpbackbutton', serialize($this->savedURLs));
       }
   
       private function addURLToStack($URL) {
           array_push($this->savedURLs, $URL);
       }
   
       private function removeLastURLFromStack() {
           array_pop($this->savedURLs);
       }
   
       private function getUnserializedStackFromCookie() {
           return unserialize(stripslashes(urldecode($_COOKIE['wpbackbutton'])));
       }
   
       private function getCurrentURL() {
           if (!isset($_SERVER['REQUEST_URI'])){
               $serverrequri = $_SERVER['PHP_SELF'];
           } else {
               $serverrequri = $_SERVER['REQUEST_URI'];
           }
           $s = empty($_SERVER["HTTPS"]) ? '' : ($_SERVER["HTTPS"] == "on") ? "s" : "";
           $protocol = $this->strleft(strtolower($_SERVER["SERVER_PROTOCOL"]), "/") . $s;
           return $protocol . "://" . $_SERVER['SERVER_NAME'] . $serverrequri;
       }
   
       private function strleft($s1, $s2) {
           return substr($s1, 0, strpos($s1, $s2));
       }
   
       private function cookieDoesntExist() {
           return !isset($_COOKIE['wpbackbutton']);
       }
   
       private function getLastURL() {
           return end($this->savedURLs);
       }
   
       private function getSecondToTheLastSavedURL() {
           end($this->savedURLs);
           return prev($this->savedURLs);
       }
   
       private function init_plugin_constants() {
           // This is what shows in the Widgets area of WordPress
           define( 'PLUGIN_NAME', self::name );
           // WP initializing slug directory in which the plugin resides
           define( 'PLUGIN_SLUG', self::slug );
       }
   
       // Add a shortcode to be able to get button source via do_shortcode in the template
       function init_shortcodes() {
           add_shortcode('renderBackButton', array($this, 'wpbackbutton_shortcode'));
       }
   
       function wpbackbutton_shortcode() {
           if ($this->getSecondToTheLastSavedURL()) {
               return '<a style="color:#555555" class="wpbackbutton" href="' . $this->getSecondToTheLastSavedURL() . '">Zurück</a>';
           }
           return;
       }
   }
   new WP_back_button();
   ?>

   
   
   Wäre top wenn mir jemand helfen könnte :)

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3. mein-wunschname

   mein-wunschname hat kostenlosen Webspace.

   13:42, 20.10.2015

   Thema gibt es doch hier schon:
   https://www.lima-city.de/thread/plugin-back-wordpress

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