/wp-content/themes/nonus/framework/createit/tools.php

<?php

function current_page_url() {
	$pageURL = 'http';
	if (isset($_SERVER["HTTPS"])) {
		if ($_SERVER["HTTPS"] == "on") {
			$pageURL .= "s";
		}
	}
	$pageURL .= "://";
	if ($_SERVER["SERVER_PORT"] != "80") {
		$pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];
	} else {
		$pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
	}
	return $pageURL;
}

/**
 * Returns option
 * @param string $id
 * @param string $default
 * @throws Exception
 * @return string
 */
function ct_get_option($id, $default = '') {
	/** @var $NHP_Options ctNHP_Options */
	global $NHP_Options;
	if ($NHP_Options) {
		return $NHP_Options->get($id, $default);
	}

	throw new Exception("Settings not initialized!F");
}

/**
 * Returns option and wraps it into a pattern
 * @param string $name
 * @param string $pattern
 * @param null $default
 * @return string
 */
function ct_get_option_pattern($name, $pattern, $default = null) {
	if (($v = ct_get_option($name)) && $v != $default) {
		return sprintf($pattern, esc_attr($v)) . "\n";
	}
	return '';
}

/**
 * Returns option and wraps it into a pattern
 * @param $params
 * @param $container
 * @param null $default
 * @return string
 */
function ct_get_option_patterns($params, $container, $default = null) {
	$data = array();
	foreach ($params as $name => $pat) {
		if (($e = ct_get_option($name))) {
			if ($e != $default) {
				$data[] = sprintf($pat, $e);
			}
		}
	}
	if ($data) {
		return $container . '{' . implode(';', $data) . '}';
	}

	return '';

}

/**
 * returns feature image source for the post
 * @param $postId
 * @param string $size
 * @return string
 */
function ct_get_feature_image_src($postId, $size = "thumbnail") {
	$imgsrc = '';
	if (has_post_thumbnail($postId)) {
		$image = wp_get_attachment_image_src(get_post_thumbnail_id($postId), $size);
		$imgsrc = $image[0];
	}
	return $imgsrc;
}

/**
 * returns
 * @param $postId
 * @return array string[]
 */
function ct_get_categories_names($postId, $taxonomy = 'category') {
	$cats = get_the_terms($postId, $taxonomy);
	$result = array();
	if ($cats) {
		foreach ($cats as $cat) {
			$result[$cat->term_id] = $cat->name;
		}
	}
	return $result;
}

/**
 * returns
 * @param $postId
 * @param string $separator
 * @return string
 */
function ct_get_categories_string($postId, $separator = ',', $taxonomy = 'category') {
	$cats = get_the_terms($postId, $taxonomy);
	$result = '';
	if ($cats) {
		foreach ($cats as $cat) {
			$result .= ($cat->name . $separator);
		}
	}
	return substr($result, 0, (-1 * strlen($separator)));
}

/**
 * returns posts grouped by categories ids
 * @param $atts
 * @param string $taxonomy
 * @return array
 */
function ct_get_posts_grouped_by_cat($atts, $taxonomy = 'category') {
	$result = array();
	$query = new WP_Query;
	$faqs = $query->query($atts);
	foreach ($faqs as $faq) {
		if ($cats = get_the_terms($faq->ID, $taxonomy)) {
			foreach ($cats as $cat) {
				$result[$cat->term_id]['cat'] = $cat->name;
				$result[$cat->term_id]['posts'][] = $faq;
			}
		}
	}
	return $result;
}

/**
 * returns blog url
 * @return string|void
 */
function ct_get_blog_url() {
	if ($posts_page_id = get_option('page_for_posts')) {
		if (function_exists('icl_object_id')) {
			$iclpageid = icl_object_id($posts_page_id, 'page', true, ICL_LANGUAGE_CODE);
			$posts_page_id = $iclpageid ? $iclpageid : $posts_page_id;
		}

		return home_url(get_page_uri($posts_page_id));
	} else {
		return home_url();
	}
}

/**
 * handles dynamic sidebars
 */
function ct_dynamic_sidebar($name = 'sidebar-primary') {
	if (function_exists('MS_dynamic_sidebar')) {
		MS_dynamic_sidebar();
	} else {
		dynamic_sidebar($name);
	}
}

/**
 * gets excerpt from content by post id
 * @param $post_id
 * @param $excerpt_length - number of words
 */
if (!function_exists('get_excerpt_by_id')) {
	function get_excerpt_by_id($post_id, $excerpt_length = 35) {
		$the_post = get_post($post_id); //Gets post ID
		if ($the_excerpt = $the_post->post_excerpt) {
			return '<p>' . $the_excerpt . '</p>';
		}
		$the_excerpt = $the_post->post_content; //Gets post_content to be used as a basis for the excerpt
		$the_excerpt = strip_tags(strip_shortcodes($the_excerpt)); //Strips tags and images
		$words = explode(' ', $the_excerpt, $excerpt_length + 1);
		if (count($words) > $excerpt_length) :
			array_pop($words);
			array_push($words, '…');
			$the_excerpt = implode(' ', $words);
		endif;
		$the_excerpt = '<p>' . $the_excerpt . '</p>';
		return $the_excerpt;
	}
}

/**
 * wp_nav_menu custom walker for breadcrumbs
 */
class ctBreadCrumbWalker extends Walker {
	/**
	 * @see Walker::$tree_type
	 * @var string
	 */
	var $tree_type = array('post_type', 'taxonomy', 'custom');

	/**
	 * @see Walker::$db_fields
	 * @var array
	 */
	var $db_fields = array('parent' => 'menu_item_parent', 'id' => 'db_id');

	/**
	 * delimiter for crumbs
	 * @var string
	 */
	var $delimiter = '';

	/**
	 * @see Walker::start_el()
	 *
	 * @param string $output Passed by reference. Used to append additional content.
	 * @param object $item Menu item data object.
	 * @param int $depth Depth of menu item.
	 * @param int $current_page Menu item ID.
	 * @param object $args
	 */
	function start_el(&$output, $item, $depth = 0, $args = array(), $current_object_id = 0) {
		//increasead compatiblity for WP >=3.6
		$this->start_element($output, $item, $depth, $args);
	}

	function start_element(&$output, $item, $depth, $args) {

		//Check if menu item is an ancestor of the current page
		$classes = empty($item->classes) ? array() : (array)$item->classes;
		$current_identifiers = array('current-menu-item', 'current-menu-parent', 'current-menu-ancestor');
		$ancestor_of_current = array_intersect($current_identifiers, $classes);

		if ($ancestor_of_current) {
			$title = apply_filters('the_title', $item->title, $item->ID);

			//Preceed with delimter for all but the first item.
			if (0 != $depth) {
				$output .= $this->delimiter;
			}

			//Link tag attributes
			$attributes = !empty($item->attr_title) ? ' title="' . esc_attr($item->attr_title) . '"' : '';
			$attributes .= !empty($item->target) ? ' target="' . esc_attr($item->target) . '"' : '';
			$attributes .= !empty($item->xfn) ? ' rel="' . esc_attr($item->xfn) . '"' : '';
			$attributes .= !empty($item->url) ? ' href="' . esc_attr($item->url) . '"' : '';

			//Add to the HTML output
			$isCurrent = false;
			foreach ($classes as $class) {
				if ($class == 'current-menu-item') {
					$isCurrent = true;
					break;
				}
			}

			'<a href="/">Home</a>&nbsp;&nbsp;/&nbsp;&nbsp;<a href="./">Parent page</a>&nbsp;&nbsp;/&nbsp;&nbsp;<span>Current page</span>';

			if ($isCurrent) {
				$output .= '<span>' . $title . '</span>';

			} else {
				$output .= '<a' . $attributes . '>' . $title . '</a>&nbsp;&nbsp;/&nbsp;&nbsp;';
			}
		}
	}
}