A Detailed Guide on Adding a Reddit Button To Your WordPress Site https://wp.me/p6prCM-4uk

reddit_button.php

<?php
 
require_once("inc/redditoauth.php");
 
class Reddit_Login_Widget extends WP_Widget
{
    public function __construct()
    {
        parent::__construct("Reddit_login_widget", "Reddit Login", array("description" => __("Display a Reddit Login Button")));
    }
         
    public function form( $instance )
    {
        // Check values
        if($instance)
        {
            $title = esc_attr($instance['title']);
            $api_key = $instance['api_key'];
            $secret_key = $instance['secret_key'];
            $username = $instance['username'];
        }
        else
        {
            $title = '';
            $api_key = '';
            $secret_key = '';
            $username = '';
        }
        ?>
 
        <p>
            <label for="<?php echo $this->get_field_id('title'); ?>"><?php echo "Title"; ?></label> 
            <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo $title; ?>" />
        </p>
 
        <p>
            <label for="<?php echo $this->get_field_id('api_key'); ?>"><?php echo "Client Id"; ?></label>
            <input type="text" class="widefat" id="<?php echo $this->get_field_id('api_key'); ?>" name="<?php echo $this->get_field_name('api_key'); ?>" value="<?php echo $api_key; ?>" />
        </p>
         
        <p>
            <label for="<?php echo $this->get_field_id('secret_key'); ?>"><?php echo "Client Secret"; ?></label>
            <input type="text" class="widefat" id="<?php echo $this->get_field_id('secret_key'); ?>" name="<?php echo $this->get_field_name('secret_key'); ?>" value="<?php echo $secret_key; ?>" />
        </p>
 
        <p>
 <label for="<?php echo $this->get_field_id('username'); ?>"><?php echo "Reddit Username"; ?></label>
            <input type="text" class="widefat" id="<?php echo $this->get_field_id('username'); ?>" name="<?php echo $this->get_field_name('username'); ?>" value="<?php echo $username; ?>" />
        </p>
 
        <p>
            While creating a Reddit app use "<?php echo get_site_url() . '/wp-admin/admin-ajax.php?action=reddit_oauth_callback'  ?>" as callback URL.
        </p>
 
        <?php
    }
         
    public function update( $new_instance, $old_instance )
    {
        $instance = $old_instance;
        $instance['title'] = strip_tags($new_instance['title']);
        $instance['api_key'] = strip_tags($new_instance['api_key']);
        $instance['secret_key'] = strip_tags($new_instance['secret_key']);
        $instance['username'] = strip_tags($new_instance['username']);
        update_option("reddit_client_id", $new_instance['api_key']);
        update_option("reddit_client_secret", $new_instance['secret_key']);
        update_option("reddit_username", $new_instance['username']);
        return $instance;
    }
         
    public function widget( $args, $instance )
    {
        extract($args);
         
        $title = apply_filters('widget_title', $instance['title']);
        echo $before_widget;
         
        if($title)
        {
            echo $before_title . $title . $after_title ;
        }
         
        if(is_user_logged_in())
        {
            ?>
                <a href="<?php echo wp_logout_url( get_permalink() ); ?>" title="Logout"><input type="button" value="Logout" /></a>
            <?php
        }
        else
        {
            ?>
                <a href="<?php echo site_url() . '/wp-admin/admin-ajax.php?action=reddit_oauth_redirect'; ?>"><input type="button" value="Login Using Reddit" /></a>
            <?php
        }
        echo $after_widget;
    }
}
register_widget("Reddit_Login_Widget");