versluis

// add my own Login Logo
function guru_login_logo() { ?>
    <style type="text/css">
        #login h1 a, .login h1 a {
            background-image: url(<?php echo get_stylesheet_directory_uri(); ?>/images/your-logo.png);
		height:65px;
		width:320px;
		background-size: 320px 65px;
		background-repeat: no-repeat;
        	padding-bottom: 10px;

versluis

<div class="iframe-container">
<iframe class="latestVideoEmbed" vnum="0" cid="UCMhv8E4GMw6erC-9iiYtNFg" allowfullscreen="" width="800" height="480" frameborder="0"></iframe>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
var reqURL = "https://api.rss2json.com/v1/api.json?rss_url=" + encodeURIComponent("https://www.youtube.com/feeds/videos.xml?channel_id=");
function loadVideo(iframe) {
  $.getJSON(reqURL + iframe.getAttribute('cid'),
    function(data) {
      var videoNumber = (iframe.getAttribute('vnum') ? Number(iframe.getAttribute('vnum')) : 0);
      console.log(videoNumber);

versluis

<?php
// create your shortcode function
function guru_my_shortcode() {

    // do something here

    // return text you want to display
    return $output;
}

versluis

<?php
function guru_is_blog () {
	global  $post;
	$posttype = get_post_type($post );
	return ( ((is_archive()) || (is_author()) || (is_category()) || (is_home()) || (is_single()) || (is_tag())) && ( $posttype == 'post')  ) ? true : false ;
}

if (guru_is_blog()) { echo 'You are on a blog page'; }

versluis

<?php 
function guru_yearsmarried() {
    
    // dates to be calculated
    $dateMarried = strtotime( '2004-04-22 15:00:00' );
    $currentDate = strtotime( current_time ( 'mysql' ));

    // calculate the time in seconds and convert
    $seconds = $currentDate - $dateMarried;
    $years = $seconds / 60 / 60 / 24 / 365.242199;