PHP get_category_parents函数代码示例

 /**
  * This function taken and only slightly adapted from WP No Category Base plugin by Saurabh Gupta
  */
 function category_rewrite_rules($rewrite)
 {
     global $wp_rewrite;
     $category_rewrite = array();
     $categories = get_categories(array('hide_empty' => false));
     $blog_prefix = '';
     if (function_exists('is_multisite') && is_multisite() && !is_subdomain_install() && is_main_site()) {
         $blog_prefix = 'blog/';
     }
     foreach ($categories as $category) {
         $category_nicename = $category->slug;
         if ($category->parent == $category->cat_ID) {
             // recursive recursion
             $category->parent = 0;
         } elseif ($category->parent != 0) {
             $category_nicename = get_category_parents($category->parent, false, '/', true) . $category_nicename;
         }
         $category_rewrite[$blog_prefix . '(' . $category_nicename . ')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?category_name=$matches[1]&feed=$matches[2]';
         $category_rewrite[$blog_prefix . '(' . $category_nicename . ')/page/?([0-9]{1,})/?$'] = 'index.php?category_name=$matches[1]&paged=$matches[2]';
         $category_rewrite[$blog_prefix . '(' . $category_nicename . ')/?$'] = 'index.php?category_name=$matches[1]';
     }
     // Redirect support from Old Category Base
     $old_base = $wp_rewrite->get_category_permastruct();
     $old_base = str_replace('%category%', '(.+)', $old_base);
     $old_base = trim($old_base, '/');
     $category_rewrite[$old_base . '$'] = 'index.php?wpseo_category_redirect=$matches[1]';
     return $category_rewrite;
 }

 public function test_visited()
 {
     $c3 = self::factory()->category->create_and_get(array('parent' => $this->c2->term_id));
     $c4 = self::factory()->category->create_and_get(array('parent' => $c3->term_id));
     $expected = $this->c1->name . '/' . $this->c2->name . '/' . $c4->name . '/';
     $found = get_category_parents($this->c2->term_id, false, '/', false, array($c3->term_id));
 }

 function parseLink($permalink, $post)
 {
     if ('' != $permalink && !in_array($post->post_status, array('draft', 'pending'))) {
         $category = '';
         if (strpos($permalink, '%scategory%') !== false) {
             $cat = null;
             $category_permalink = get_post_meta($post->ID, '_category_permalink', true);
             if ($category_permalink) {
                 $cat = get_category($category_permalink);
             }
             if (!$cat) {
                 $cats = get_the_category($post->ID);
                 usort($cats, '_usort_terms_by_ID');
                 // order by ID
                 $cat = $cats[0];
             }
             $category = $cat->slug;
             if ($parent = $cat->parent) {
                 $category = get_category_parents($parent, false, '/', true) . $category;
             }
             // show default category in permalinks, without
             // having to assign it explicitly
             if (empty($category)) {
                 $default_category = get_category(get_option('default_category'));
                 $category = is_wp_error($default_category) ? '' : $default_category->slug;
             }
         }
         $p = str_replace('%scategory%', $category, $permalink);
         return $p;
     }
     return $permalink;
 }

function get_permalink($id = 0)
{
    $rewritecode = array('%year%', '%monthnum%', '%day%', '%hour%', '%minute%', '%second%', '%postname%', '%post_id%', '%category%', '%author%', '%pagename%');
    $post =& get_post($id);
    if ($post->post_status == 'static') {
        return get_page_link($post->ID);
    } elseif ($post->post_status == 'attachment') {
        return get_attachment_link($post->ID);
    }
    $permalink = get_settings('permalink_structure');
    if ('' != $permalink && 'draft' != $post->post_status) {
        $unixtime = strtotime($post->post_date);
        $category = '';
        if (strstr($permalink, '%category%')) {
            $cats = get_the_category($post->ID);
            $category = $cats[0]->category_nicename;
            if ($parent = $cats[0]->category_parent) {
                $category = get_category_parents($parent, FALSE, '/', TRUE) . $category;
            }
        }
        $authordata = get_userdata($post->post_author);
        $author = $authordata->user_nicename;
        $date = explode(" ", date('Y m d H i s', $unixtime));
        $rewritereplace = array($date[0], $date[1], $date[2], $date[3], $date[4], $date[5], $post->post_name, $post->ID, $category, $author, $post->post_name);
        return apply_filters('post_link', get_settings('home') . str_replace($rewritecode, $rewritereplace, $permalink), $post);
    } else {
        // if they're not using the fancy permalink option
        $permalink = get_settings('home') . '/?p=' . $post->ID;
        return apply_filters('post_link', $permalink, $post);
    }
}

function remove_category_url_rewrite_rules($category_rewrite)
{
    $category_rewrite = array();
    if (class_exists('Sitepress')) {
        global $sitepress;
        remove_filter('terms_clauses', array($sitepress, 'terms_clauses'));
        $categories = get_categories(array('hide_empty' => false));
        add_filter('terms_clauses', array($sitepress, 'terms_clauses'));
    } else {
        $categories = get_categories(array('hide_empty' => false));
    }
    foreach ($categories as $category) {
        $category_nicename = $category->slug;
        if ($category->parent == $category->cat_ID) {
            $category->parent = 0;
        } elseif ($category->parent != 0) {
            $category_nicename = get_category_parents($category->parent, false, '/', true) . $category_nicename;
        }
        $category_rewrite['(' . $category_nicename . ')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?category_name=$matches[1]&feed=$matches[2]';
        $category_rewrite['(' . $category_nicename . ')/page/?([0-9]{1,})/?$'] = 'index.php?category_name=$matches[1]&paged=$matches[2]';
        $category_rewrite['(' . $category_nicename . ')/?$'] = 'index.php?category_name=$matches[1]';
    }
    global $wp_rewrite;
    $old_category_base = get_option('category_base') ? get_option('category_base') : 'category';
    $old_category_base = trim($old_category_base, '/');
    $category_rewrite[$old_category_base . '/(.*)$'] = 'index.php?category_redirect=$matches[1]';
    return $category_rewrite;
}

 /**
  * Prints HTML with meta information for the categories, tags and comments.
  */
 function smittenkitchen_primary_category()
 {
     if ('post' == get_post_type()) {
         $categories = get_the_category(get_the_ID());
         // For each category, derive a list of top-level parent categories.
         $parent_categories = array();
         foreach ($categories as $category) {
             if (0 === $category->category_parent) {
                 $top_level_parent = $category->name;
             } else {
                 // Get the top-level parent.
                 $all_parents = get_category_parents($category->term_id, false, '&&&');
                 $all_parents = explode('&&&', $all_parents);
                 $top_level_parent = $all_parents[0];
             }
             // Add category to our array.
             if (!in_array($top_level_parent, $parent_categories)) {
                 $parent_categories[] = $top_level_parent;
             }
         }
         // Join strings together!
         $parent_category_string = implode(', ', $parent_categories);
         if ($parent_category_string && smittenkitchen_categorized_blog()) {
             printf('<span class="smittenkitchen-primary-category">' . esc_html__('%1$s', 'smittenkitchen') . '</span>', $parent_category_string);
             // WPCS: XSS OK.
         }
     }
 }

function bavota_breadcrumbs()
{
    if (!is_front_page()) {
        echo '<a href="' . home_url('/') . 'blog">Blog</a><span class="divider"> <i class="icon-angle-right"></i> </span>';
    }
    if (is_category() || is_single()) {
        $category = get_the_category();
        $ID = $category[0]->cat_ID;
        // echo get_category_parents($ID, TRUE, ' ', FALSE ); // was causing errors in the error_log
        echo is_wp_error($cat_parents = get_category_parents($ID, TRUE, ' ', FALSE)) ? '' : $cat_parents;
    }
    $mytitle = get_the_title();
    if (strlen($mytitle) > 22) {
        $mytitle = substr($mytitle, 0, 38) . "...";
    }
    if (is_single() || is_page()) {
        echo ' <span class="divider"> <i class="icon-angle-right"></i> </span> ';
        echo $mytitle;
    }
    if (is_tag()) {
        echo "Tag: " . single_tag_title('', FALSE);
    }
    if (is_404()) {
        echo "404 - Page not Found";
    }
    if (is_search()) {
        echo "Search";
    }
    if (is_year()) {
        echo get_the_time('Y');
    }
}

function no_category_base_rewrite_rules($category_rewrite)
{
    //var_dump($category_rewrite); // For Debugging
    $category_rewrite = array();
    $categories = get_categories(array('hide_empty' => false));
    foreach ($categories as $category) {
        $category_nicename = $category->slug;
        if ($category->parent == $category->cat_ID) {
            // recursive recursion
            $category->parent = 0;
        } elseif ($category->parent != 0) {
            $category_nicename = get_category_parents($category->parent, false, '/', true) . $category_nicename;
        }
        $category_rewrite['(' . $category_nicename . ')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?category_name=$matches[1]&feed=$matches[2]';
        $category_rewrite['(' . $category_nicename . ')/page/?([0-9]{1,})/?$'] = 'index.php?category_name=$matches[1]&paged=$matches[2]';
        $category_rewrite['(' . $category_nicename . ')/?$'] = 'index.php?category_name=$matches[1]';
    }
    // Redirect support from Old Category Base
    global $wp_rewrite;
    $old_category_base = get_option('category_base') ? get_option('category_base') : 'category';
    $old_category_base = trim($old_category_base, '/');
    $category_rewrite[$old_category_base . '/(.*)$'] = 'index.php?category_redirect=$matches[1]';
    //var_dump($category_rewrite); // For Debugging
    return $category_rewrite;
}

function no_category_base_rewrite_rules($category_rewrite) {
	//print_r($category_rewrite); // For Debugging
	
	$category_rewrite=array();
	$categories=get_categories(array('hide_empty'=>false));
	foreach($categories as $category) {
		$category_nicename = $category->slug;
		if ( $category->parent == $category->cat_ID ) // recursive recursion
			$category->parent = 0;
		elseif ($category->parent != 0 )
			$category_nicename = get_category_parents( $category->parent, false, '/', true ) . $category_nicename;
		$category_rewrite['('.$category_nicename.')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?category_name=$matches[1]&feed=$matches[2]';
		$category_rewrite['('.$category_nicename.')/page/?([0-9]{1,})/?$'] = 'index.php?category_name=$matches[1]&paged=$matches[2]';
		$category_rewrite['('.$category_nicename.')/?$'] = 'index.php?category_name=$matches[1]';
	}
	// Redirect support from Old Category Base
	global $wp_rewrite;
	$old_base = $wp_rewrite->get_category_permastruct();
	$old_base = str_replace( '%category%', '(.+)', $old_base );
	$old_base = trim($old_base, '/');
	$category_rewrite[$old_base.'$'] = 'index.php?category_redirect=$matches[1]';
	
	//print_r($category_rewrite); // For Debugging
	return $category_rewrite;
}

/**
 * Adds our custom category rewrite rules.
 *
 * @param  array $category_rewrite Category rewrite rules.
 *
 * @return array
 */
function remove_category_url_rewrite_rules($category_rewrite)
{
    global $wp_rewrite;
    $category_rewrite = array();
    /* WPML is present: temporary disable terms_clauses filter to get all categories for rewrite */
    if (class_exists('Sitepress')) {
        global $sitepress;
        remove_filter('terms_clauses', array($sitepress, 'terms_clauses'));
        $categories = get_categories(array('hide_empty' => false, '_icl_show_all_langs' => true));
        add_filter('terms_clauses', array($sitepress, 'terms_clauses'));
    } else {
        $categories = get_categories(array('hide_empty' => false));
    }
    foreach ($categories as $category) {
        $category_nicename = $category->slug;
        if ($category->parent == $category->cat_ID) {
            $category->parent = 0;
        } elseif (0 != $category->parent) {
            $category_nicename = get_category_parents($category->parent, false, '/', true) . $category_nicename;
        }
        $category_rewrite['(' . $category_nicename . ')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?category_name=$matches[1]&feed=$matches[2]';
        $category_rewrite['(' . $category_nicename . ')/page/?([0-9]{1,})/?$'] = 'index.php?category_name=$matches[1]&paged=$matches[2]';
        $category_rewrite['(' . $category_nicename . ')/?$'] = 'index.php?category_name=$matches[1]';
    }
    // Redirect support from Old Category Base
    $old_category_base = get_option('category_base') ? get_option('category_base') : 'category';
    $old_category_base = trim($old_category_base, '/');
    $category_rewrite[$old_category_base . '/(.*)$'] = 'index.php?category_redirect=$matches[1]';
    return $category_rewrite;
}

/**
 * Remove the 'category' base from category URIs.
 */
function smittenkitchen_filter_category_rewrite_rules($rules)
{
    $categories = get_categories(array('hide_empty' => false));
    if (is_array($categories) && !empty($categories)) {
        $slugs = array();
        foreach ($categories as $category) {
            if (is_object($category) && !is_wp_error($category)) {
                if (0 == $category->category_parent) {
                    $slugs[] = $category->slug;
                } else {
                    $slugs[] = trim(get_category_parents($category->term_id, false, '/', true), '/');
                }
            }
        }
        if (!empty($slugs)) {
            $rules = array();
            foreach ($slugs as $slug) {
                $rules['(' . $slug . ')/feed/(feed|rdf|rss|rss2|atom)?/?$'] = 'index.php?category_name=$matches[1]&feed=$matches[2]';
                $rules['(' . $slug . ')/(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?category_name=$matches[1]&feed=$matches[2]';
                $rules['(' . $slug . ')(/page/(\\d+))?/?$'] = 'index.php?category_name=$matches[1]&paged=$matches[3]';
            }
        }
    }
    return $rules;
}

function crumb()
{
    if (is_attachment()) {
        $titles = $title = '附件';
    } elseif (is_single()) {
        $categorys = get_the_category();
        $category = $categorys[0];
        $title = get_the_title();
        $titles = get_category_parents($category->term_id, true, ' » ') . $title;
    } elseif (is_page()) {
        $titles = $title = get_the_title();
    } elseif (is_category()) {
        $titles = $title = single_cat_title('', false);
    } elseif (is_tag()) {
        $titles = $title = single_tag_title('', false);
    } elseif (is_day()) {
        $titles = $title = get_the_time('Y年Fj日');
    } elseif (is_month()) {
        $titles = $title = get_the_time('Y年F');
    } elseif (is_year()) {
        $titles = $title = get_the_time('Y年');
    } elseif (is_search()) {
        global $s;
        $titles = $title = $s . ' 的搜索结果';
    } else {
        $titles = $title = '';
    }
    echo '<div class="crumb">' . '	<strong style="display:inline;">' . $title . '</strong>' . '	<div class="nav_crumb">' . '		<a href="' . get_bloginfo('url') . '" title="' . get_bloginfo('name') . '">HOME</a> &raquo; ' . $titles . '	</div>' . '</div>';
}

function rt_breadcrumb($gecerli_sayfa)
{
    if (is_page()) {
        $ust_id = $gecerli_sayfa->post_parent;
        $yeni_sorgu = get_post($ust_id);
        if ($yeni_sorgu->post_parent) {
            rt_breadcrumb($yeni_sorgu);
            echo " \\ ";
        }
        echo "<a href=\"" . get_permalink($yeni_sorgu->ID) . "\" title=\"\" >" . get_the_title($yeni_sorgu->ID) . "</a>";
    } elseif (is_single() || is_category() && !is_archive()) {
        $ust_id = $gecerli_sayfa->post_parent;
        $yeni_sorgu = get_post($ust_id);
        $kategori = get_the_category($yeni_sorgu->ID);
        $ID = $kategori[0]->cat_ID;
        $ayrac = " &#92; ";
        echo get_category_parents($ID, TRUE, $ayrac, FALSE);
        if ($yeni_sorgu->post_parent) {
            rt_breadcrumb($yeni_sorgu);
            if (!is_category()) {
                echo " \\ ";
            }
        }
        if (is_single()) {
            echo "<a href=\"" . get_permalink($yeni_sorgu->ID) . "\" title=\"\" >" . get_the_title($yeni_sorgu->ID) . "</a>";
        }
    } else {
        echo wp_title('');
    }
}

/**
 * Breadcrumbs
 * @return html
 * @source http://yootheme.com (Warp Themes)
 */
function basey_breadcrumbs()
{
    global $wp_query;
    if (!is_home() && !is_front_page()) {
        $output = '<ul class="zz-link-more-muted zz-text-more-muted zz-position-up uk-breadcrumb uk-hidden-small">';
        $output .= '<li><a href="' . get_option('home') . '">Home</a></li>';
        if (is_single()) {
            $cats = get_the_category();
            if ($cats) {
                $cat = $cats[0];
                if (is_object($cat)) {
                    if ($cat->parent != 0) {
                        $cats = explode("@@@", get_category_parents($cat->term_id, true, "@@@"));
                        unset($cats[count($cats) - 1]);
                        $output .= str_replace('<li>@@', '<li>', '<li>' . implode("</li><li>", $cats) . '</li>');
                    } else {
                        $output .= '<li><a href="' . get_category_link($cat->term_id) . '">' . $cat->name . '</a></li>';
                    }
                }
            }
        }
        if (is_category()) {
            $cat_obj = $wp_query->get_queried_object();
            $cats = explode("@@@", get_category_parents($cat_obj->term_id, TRUE, '@@@'));
            unset($cats[count($cats) - 1]);
            $cats[count($cats) - 1] = '@@<span>' . strip_tags($cats[count($cats) - 1]) . '</span>';
            $output .= str_replace('<li>@@', '<li class="uk-active">', '<li>' . implode("</li><li>", $cats) . '</li>');
        } elseif (is_tag()) {
            $output .= '<li class="uk-active"><span>' . single_cat_title('', false) . '</span></li>';
        } elseif (is_date()) {
            $output .= '<li class="uk-active"><span>' . single_month_title(' ', false) . '</span></li>';
        } elseif (is_author()) {
            $user = get_user_by('login', get_the_author());
            $output .= '<li class="uk-active"><span>' . $user->display_name . '</span></li>';
        } elseif (is_search()) {
            $output .= '<li class="uk-active"><span>' . stripslashes(strip_tags(get_search_query())) . '</span></li>';
        } elseif (is_tax()) {
            $taxonomy = get_taxonomy(get_query_var('taxonomy'));
            $term = get_query_var('term');
            $output .= '<li class="uk-active"><span>' . $taxonomy->label . ': ' . $term . '</span></li>';
        } else {
            if (!in_array(get_post_type(), array('post', 'page'))) {
                $cpt = get_post_type_object(get_post_type());
                $output .= '<li><a href="' . get_post_type_archive_link(get_post_type()) . '">' . $cpt->labels->name . '</a></li>';
            }
            $ancestors = get_ancestors(get_the_ID(), 'page');
            for ($i = count($ancestors) - 1; $i >= 0; $i--) {
                $output .= '<li><a href="' . get_page_link($ancestors[$i]) . '" title="' . get_the_title($ancestors[$i]) . '">' . get_the_title($ancestors[$i]) . '</a></li>';
            }
            $output .= '<li class="uk-active"><span>' . get_the_title() . '</span></li>';
        }
        $output .= '</ul>';
    } else {
        $output = '<ul class="uk-breadcrumb">';
        $output .= '<li class="uk-active"><span>Home</span></li>';
        $output .= '</ul>';
    }
    echo $output;
}

 public function test_visited_should_also_exclude_children_of_visited_categories()
 {
     $c3 = self::factory()->category->create_and_get(array('parent' => $this->c2->term_id));
     $c4 = self::factory()->category->create_and_get(array('parent' => $c3->term_id));
     $expected = $this->c1->name . '/' . $this->c2->name . '/';
     $found = get_category_parents($this->c2->term_id, false, '/', false, array($c3->term_id));
     $this->assertSame($expected, $found);
 }