WordPress-Handbuch

function wordpress_handbuch_shortcode( ) {
	return '<a href="https://wordpress-handbuch.com">WordPress-Handbuch.com</a>';
}
add_shortcode( 'wphb', 'wordpress_handbuch_shortcode' );

WordPress-Handbuch

<?php
/**
 * @package WH_Hello_World
 * @version 1.0.0
 */
/*
Plugin Name: WH Hello World
Plugin URI: https://wordpress-handbuch.com
Description: Testausgabe in Front- und Backend
Author: Richard Eisenmenger

WordPress-Handbuch

/**
 * Disable all color options in Gutenberg
 */
function my_theme_and_gutenberg_adjustments() {
    add_theme_support( 'editor-color-palette' );
    add_theme_support( 'disable-custom-colors' );
}
add_action( 'after_setup_theme', 'my_theme_and_gutenberg_adjustments' );

WordPress-Handbuch

<?php
/**
 * Plugin Name: WH Custom Post Type
 */
function add_wh_events() {
	$labels = array(
		'name'                  => 'Veranstaltungen',
		'singular_name'         => 'Veranstaltung',
		'add_new'               => 'Erstellen',
		'add_new_item'          => 'Neue Veranstaltung erzeugen',

WordPress-Handbuch

<?php if (get_post_meta(get_the_ID(), 'Ribbon', true) != '') {  ?>
  <div class="ribbon ribbon-top-right">
    <span><?php echo (get_post_meta(get_the_ID(), 'Ribbon', true)); ?></span>
  </div>
<?php } ?>

WordPress-Handbuch

.ribbon {
  width: 150px;
  height: 150px;
  overflow: hidden;
  position: absolute;
  z-index:9;
}

.ribbon span {
  position: absolute;

WordPress-Handbuch

/**
 * Allow only certain block types in Gutenberg
 * Possible:
  * core/list, core/quote, core/cover-image, core/paragraph, core/image, core/heading, core/gallery, core/audio, core/file, core/video
  * core/freeform, core/html, core/code, core/preformatted, core/pullquote, core/table, core/verse
  * core/button, core/text-columns, core/more, core/nextpage, core/separator, core/spacer
  * core/shortcode, core/archives, core/categories, core/latest-comments, core/latest-posts
  * core-embed/: twitter, youtube, facebook, Instagram, wordpress, soundcloud, spotify, flickr, vimeo, animoto, cloudup, collegehumor, dailymotion, funnyordie, hulu, imgur, issuu, kickstarter, meetup-com, mixcloud, photobucket, polldaddy, reddit, reverbnation, screencast, sribd, slideshare, smugmug, speaker, ted, tumblr, videopress, wordpress-tv
 */
function my_allowed_block_types( $allowed_blocks ) {

WordPress-Handbuch

<meta name="description" content="Auszug/Exzerpt" />
<meta name="twitter:site" content="Website-Titel" />
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:title" content="Webseiten-Titel" />
<meta name="twitter:description" content="Auszug/Exzerpt" />
<meta name="twitter:image" content="Vorschaubild" />
<meta name="twitter:url" content="Permalink-URL" />
<meta property="og:site_name" content="Website-Titel" />
<meta property="og:title" content="Webseiten-Titel" />
<meta property="og:description" content="Auszug/Exzerpt" />

WordPress-Handbuch

<?php
if (is_single())
{
	$title = htmlspecialchars( strip_tags( get_the_title( $post->ID ) ) );
	$description = htmlspecialchars( strip_tags( get_the_excerpt( $post->ID ) ) );
	$thumbnail = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'full' );
	$image = $thumbnail[0];
	$type = 'article';
} elseif (is_page()) {
	$title = htmlspecialchars( strip_tags( get_the_title( $post->ID ) ) );

WordPress-Handbuch

the_post_navigation(
	array(
		'next_text' => '<span class="meta-nav" aria-hidden="true">Weiter</span> ' .
		'<span class="screen-reader-text">Weiter</span> <br/>' .
		'<span class="post-title">%title</span>',
	'prev_text' => '<span class="meta-nav" aria-hidden="true">Zurück</span> ' .
		'<span class="screen-reader-text">Zurück</span> <br/>' .
		'<span class="post-title">%title</span>',
		)
	);