wp文本小工具运行php代码实现面包屑导航步骤

//添加面包屑导航function iaccepted_breadcrumbs() {  $delimiter = '&raquo;';  $name = 'Home'; //text for the 'Home' link  $currentBefore = '<span>';  $currentAfter = '</span>';  if ( !is_home() && !is_front_page() || is_paged() ) {    echo '<div id="crumbs">';    global $post;    $home = get_bloginfo('url');    echo '<a href="' . $home . '"><font color=red>' . $name . '</font></a> ' . $delimiter . ' ';    if ( is_category() ) {      global $wp_query;      $cat_obj = $wp_query->get_queried_object();      $thisCat = $cat_obj->term_id;      $thisCat = get_category($thisCat);      $parentCat = get_category($thisCat->parent);      if ($thisCat->parent != 0) echo(get_category_parents($parentCat, TRUE, ' ' . $delimiter . ' '));      echo $currentBefore;      single_cat_title();      echo $currentAfter;    } elseif ( is_day() ) {      echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';      echo '<a href="' . get_month_link(get_the_time('Y'),get_the_time('m')) . '">' . get_the_time('F') . '</a> ' . $delimiter . ' ';      echo $currentBefore . get_the_time('d') . $currentAfter;    } elseif ( is_month() ) {      echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';      echo $currentBefore . get_the_time('F') . $currentAfter;    } elseif ( is_year() ) {      echo $currentBefore . get_the_time('Y') . $currentAfter;    } elseif ( is_single() ) {      $cat = get_the_category(); $cat = $cat[0];      echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');      echo $currentBefore;      the_title();      echo $currentAfter;    } elseif ( is_page() && !$post->post_parent ) {      echo $currentBefore;      the_title();      echo $currentAfter;    } elseif ( is_page() && $post->post_parent ) {      $parent_id  = $post->post_parent;      $breadcrumbs = array();      while ($parent_id) {        $page = get_page($parent_id);        $breadcrumbs[] = '<a href="' . get_permalink($page->ID) . '">' . get_the_title($page->ID) . '</a>';        $parent_id  = $page->post_parent;      }      $breadcrumbs = array_reverse($breadcrumbs);      foreach ($breadcrumbs as $crumb) echo $crumb . ' ' . $delimiter . ' ';      echo $currentBefore;      the_title();      echo $currentAfter;    } elseif ( is_search() ) {      echo $currentBefore . get_search_query() . $currentAfter;    } elseif ( is_tag() ) {      echo $currentBefore;      single_tag_title();      echo $currentAfter;    } elseif ( is_author() ) {       global $author;      $userdata = get_userdata($author);      echo $currentBefore .' ' . $userdata->display_name . $currentAfter;    } elseif ( is_404() ) {      echo $currentBefore . 'Error 404' . $currentAfter;    }    if ( get_query_var('paged') ) {      if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ' (';      echo __('Page') . ' ' . get_query_var('paged');      if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ')';    }    echo '</div>';  }}

//让小工具中可以嵌入php代码function php_text($text){	if (strpos($text, '<'.'?')!==false)	{		ob_start();		eval('?'.'>'.$text);		$text = ob_get_contents();		ob_end_clean();	}	return $text;}add_filter('widget_text', 'php_text', 90);

您现在的位置：<?php if (functions_exists('iaccepted_breadcrumbs')) iaccepted_breadcrumbs(); ?>