function crunchify_social_sharing_buttons($content) {
    global $post;
    if(is_singular() || is_home()){
    
        // Get current page URL 
        $crunchifyURL = urlencode(get_permalink());
 
        // Get current page title
        $crunchifyTitle = str_replace( ' ', '%20', get_the_title());
        
        // Get Post Thumbnail for pinterest
        $crunchifyThumbnail = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'full' );
 
        // Construct sharing URL without using any script
        $twitterURL = 'https://twitter.com/intent/tweet?text='.$crunchifyTitle.'&url='.$crunchifyURL.'&via=Crunchify';
        $facebookURL = 'https://www.facebook.com/sharer/sharer.php?u='.$crunchifyURL;
        $googleURL = 'https://plus.google.com/share?url='.$crunchifyURL;
        $bufferURL = 'https://bufferapp.com/add?url='.$crunchifyURL.'&text='.$crunchifyTitle;
        $whatsappURL = 'whatsapp://send?text='.$crunchifyTitle . ' ' . $crunchifyURL;
        $linkedInURL = 'https://www.linkedin.com/shareArticle?mini=true&url='.$crunchifyURL.'&title='.$crunchifyTitle;
 
        // Based on popular demand added Pinterest too
        $pinterestURL = 'https://pinterest.com/pin/create/button/?url='.$crunchifyURL.'&media='.$crunchifyThumbnail[0].'&description='.$crunchifyTitle;
 
        // Add sharing button at the end of page/page content
        $content .= '<!-- Crunchify.com social sharing. Get your copy here: http://crunchify.me/1VIxAsz -->';
        $content .= '<div class="crunchify-social">';
        $content .= '<h5>SHARE ON</h5> <a class="crunchify-link crunchify-twitter" href="'. $twitterURL .'" target="_blank">Twitter</a>';
        $content .= '<a class="crunchify-link crunchify-facebook" href="'.$facebookURL.'" target="_blank">Facebook</a>';
        $content .= '<a class="crunchify-link crunchify-whatsapp" href="'.$whatsappURL.'" target="_blank">WhatsApp</a>';
        $content .= '<a class="crunchify-link crunchify-googleplus" href="'.$googleURL.'" target="_blank">Google+</a>';
        $content .= '<a class="crunchify-link crunchify-buffer" href="'.$bufferURL.'" target="_blank">Buffer</a>';
        $content .= '<a class="crunchify-link crunchify-linkedin" href="'.$linkedInURL.'" target="_blank">LinkedIn</a>';
        $content .= '<a class="crunchify-link crunchify-pinterest" href="'.$pinterestURL.'" data-pin-custom="true" target="_blank">Pin It</a>';
        $content .= '</div>';
        
        return $content;
    }else{
        // if not a post/page then don't include sharing button
        return $content;
    }
};
add_filter( 'the_content', 'crunchify_social_sharing_buttons');