Snippets repository for WordPress developpers

// Core updates
add_filter( 'auto_core_update_send_email', 'wpb_stop_auto_update_emails', 10, 4 );
 
function wpb_stop_update_emails( $send, $type, $core_update, $result ) {
if ( ! empty( $type ) && $type == 'success' ) {
return false;
}
return true;
}

// Plugins updates
add_filter( 'auto_plugin_update_send_email', '__return_false' );

//Themes updates
add_filter( 'auto_theme_update_send_email', '__return_false' );

function wpc_fix_svg_size_attributes($out, $id) {
	$image_url = wp_get_attachment_url($id);
	$file_ext = pathinfo($image_url, PATHINFO_EXTENSION);
	if (is_admin() || 'svg' !== $file_ext) {
		return false;
	}
	return array($image_url, null, null, false);
}
add_filter('image_downsize', 'wpc_fix_svg_size_attributes', 10, 2);

//ad ID to li menu tag
function menu_id_page($item, $args)
{
  $page = get_post($args->object_id);
  $item = $page->post_name;
  return $item;
}
add_filter('nav_menu_item_id', 'menu_id_page', 10, 2);

/**
 * Reusable Blocks accessible in backend
 * @link https://www.billerickson.net/reusable-blocks-accessible-in-wordpress-admin-area
 *
 */
function be_reusable_blocks_admin_menu() {
    add_menu_page( 'Reusable Blocks', 'Reusable Blocks', 'edit_posts', 'edit.php?post_type=wp_block', '', 'dashicons-editor-table', 22 );
}
add_action( 'admin_menu', 'be_reusable_blocks_admin_menu' );

// into a separated js files
wp.domReady( () => {
  //Register 2 styles of headings
  wp.blocks.registerBlockStyle( 'core/heading', [ 
    {
      name: 'default',
      label: 'Default',
      isDefault: true
    },
    {
      name: 'display',
      label: 'Display'
    }
  ]);
} );

// into any page or template
$orig_post = $post;
global $post;
$categories = get_the_category($post->ID);
if ($categories) {
  $category_ids = array();
  foreach($categories as $individual_category) $category_ids[] = $individual_category->term_id;
  $args=array(
    'category__in' => $category_ids,
    'post__not_in' => array($post->ID),
    'posts_per_page'=> 2, // Number of related posts that will be shown.
    'ignore_sticky_posts'=>1
  );

  $my_query = new wp_query( $args );
  if( $my_query->have_posts() ) { ?>
    <h4>Related posts</h4>
    <?php
    while( $my_query->have_posts() ) {
      $my_query->the_post();
      get_template_part( '/partials/article-card' );
    } ?>
    <?php	
  }
}
$post = $orig_post;
wp_reset_postdata();

//functions.php
function sp_wp_nav_menu_objects( $items, $args ) {
  // loop
  foreach( $items as &$item ) {
    // vars
    $icon = get_field('call-to-action_option', $item);
    // append icon
    if( $icon ) {
      $item->classes[] = 'cta-btn';
    }
  }
  // return
  return $items;
}
add_filter('wp_nav_menu_objects', 'sp_wp_nav_menu_objects', 10, 2);

// functions.php
function luckywp_output( $args ) {
  $args = array(
    'container' => 'nav',
    'container_class'	=> 'main-menu',
    'items_wrap' => '<ul>%3$s</ul>',
    'menu_id'	=> '',
    'menu_class' => ''
  );
  return $args;
}
// add the filter 
add_filter( 'lwpamf_wp_nav_menu_args', ' luckywp_output', 10, 2 ); 

<?php
$tags = get_tags();
if ( $tags ) :
   foreach ( $tags as $tag ) : ?>
    <li><a href="<?php echo esc_url( get_tag_link( $tag->term_id ) ); ?>" title="<?php echo esc_attr( $tag->name ); ?>"><?php echo esc_html( $tag->name ); ?></a></li>
   <?php endforeach; ?>
<?php endif; ?>

// functions.php
// Will only leave Image, Paragraph, Heading and List blocks 
function misha_allowed_block_types( $allowed_blocks, $post ) {
  $allowed_blocks = array(
    'core/image',
    'core/paragraph',
    'core/heading',
    'core/list'
  );
  // Only for Page post type
  if( $post->post_type === 'page' ) {
    $allowed_blocks[] = 'core/shortcode';
  }
  return $allowed_blocks;
}
add_filter( 'allowed_block_types', 'misha_allowed_block_types', 10, 2 );