循环函数
循环开始
<?php query_posts('showposts=4&cat=4');?>
//showposts=4 输出四篇文章， cat=4代表 ID=4,还可以接orderby等参数
<?php if ( have_posts() ) :?>
<?php $i=1; while ( have_posts() ) : the_post();?>
循环内容
<?phpthe_permalink()?> 文章链接
<?phpthe_title()?> 文章标题
<?phpecho catch_that_image()?> 获取文章图片，不能单独用，需配合function函数
<?phpechomb_strimwidth(strip_tags(apply_filters('the_content', $post->post_content)), 0, 100,'...');?>
获取文章前100个字符
<?phpthe_content()?> 文章内容
<?php
$views=(int)get_post_meta($post->ID,'views',true)
$add_views=(int)update_post_meta($post->ID,'views',$views 1);
$after_views=(int)get_post_meta($post->ID,'views',true);
if($after_views){
echo $after_views.'次 |';
}else{
echo'没有统计浏览量！';
}?>
获取文章浏览量
<?php the_time(‘Y-m-d’) ?> 文章发布时间
<?php the_author() ?>文章作者
<?php $author=get_post_meta($post->ID,'author',true);
if(!!$author){ echo $author;}
else{the_author()}
?>
循环结束
<?php$i ; endwhile;?>
<?phpendif;?>
<?phpwp_reset_query();?>
获取统计
日志总数：<?php $count_posts = wp_count_posts(); echo $published_posts =$count_posts->publish;?>篇
草稿总数：<?php $count_posts = wp_count_posts(); echo $draft_posts = $count_posts->draft; ?>
页面总数：<?php $count_pages = wp_count_posts('page'); echo $page_posts = $count_pages->publish; ?>
用户总数：<?php $users = $wpdb->get_var('SELECT COUNT(ID) FROM $wpdb->users'); echo $users; ?>
成立时间：<?php echo floor((time()-strtotime('2016-8-23'))/86400); ?> //其中的年月日改成你自己的网站成立时间
分类总数：<?php echo $count_categories = wp_count_terms('category'); ?>个
标签总数：<?php echo $count_tags = wp_count_terms('post_tag'); ?>个
友情链接：<?php $link = $wpdb->get_var('SELECT COUNT(*) FROM $wpdb->links WHERE link_visible = 'Y''); echo $link; ?>个
网站运行：<?php echo floor((time()-strtotime('2016-7-27'))/86400); ?>天
最后更新：<?php $last = $wpdb->get_results('SELECT MAX(post_modified) AS MAX_m FROM $wpdb->posts WHERE (post_type = 'post' OR post_type = 'page') AND (post_status = 'publish' OR post_status = 'private')');$last = date('Y年n月j日', strtotime($last[0]->MAX_m));echo $last; ?>
访客量：<?php
$counterFile = 'counter.txt';
$fp = fopen($counterFile,'a ');
$num = fgets($fp,5);
$num = 1;
print '您是第 '.'$num'.' 位访客';
fclose($fp);
$fpp=fopen($counterFile,'w');
fwrite($fpp, $num);
fclose($fpp);
?>
调用页面内容
<?php $my_id = 115; echo get_post($my_id)->post_content; ?>
<?php $my_id = 115; $mypage = get_post($my_id); ?>
<h2><?php echo $mypage->post_title;?></h2> <?php echo substr($mypage->post_content,0,strpos($mypage->post_content, '<!--more-->'));?>
Function主函数常用示例
//添加菜单功能
if (function_exists('add_theme_support')) {
add_theme_support('nav-menus');
register_nav_menus( array(
'primary'=> __('Primary Navigation','primary'),
'slide-menus'=>__('Slide Menus','slide'),
'footer-menus'=>__('Footer Menus','footer')
) );
}
//在Function.php里面加入一段获取首张图片的函数：
function catch_that_image() {
global $post, $posts;
$first_img ='';
ob_start();
ob_end_clean();
$output = preg_match_all('/<img. src=[\'']([^\''] )[\''].*>/i', $post->post_content, $matches);
$first_img = $matches [1] [0];
// if(empty($first_img)){
// $first_img = get_bloginfo('template_directory').'/img/default.jpg';
// }
return $first_img;
}
//在Function.php里面加入一段更改登录页面LOGO：
function custom_loginlogo() {
echo'<style type='text/css'>.login h1 a {background-image: url('.get_bloginfo('template_directory').'/img/login_logo.png) !important; }</style>';
}add_action('login_head','custom_loginlogo');
//在Function.php里面加入一段禁用更新：
add_action('admin_menu','wp_hide_nag');
function wp_hide_nag() {
remove_action('admin_notices','update_nag', 3 );
}
// 添加菜单
function addmenu_function(){
add_menu_page( '成绩上传', '成绩上传', 'edit_themes', 'upsql_point','uppoint_function','',6);
}
//添加面包屑导航
function cmp_breadcrumbs() {
$delimiter ='>';// 分隔符
$before ='<span>';// 在当前链接前插入
$after ='</span>';// 在当前链接后插入
if ( !is_home() && !is_front_page() || is_paged() ) {
echo'<div>'.__('当前位置:','cmp');
global $post;
$homeLink = home_url();
echo' <a href=''. $homeLink .''>'. __('未济首页','cmp') .'</a> '. $delimiter .' ';
if ( is_category() ) {// 分类 存档
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){
$cat_code = get_category_parents($parentCat, TRUE,' '. $delimiter .' ');
echo $cat_code = str_replace ('<a','<a itemprop='breadcrumb'', $cat_code );
}
echo $before .''. single_cat_title('', false) .''. $after;
} elseif ( is_day() ) {// 天 存档
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 $before . get_the_time('d') . $after;
} elseif ( is_month() ) {// 月 存档
echo'<a href=''. get_year_link(get_the_time('Y')) .''>'. get_the_time('Y') .'</a> '. $delimiter .' ';
echo $before . get_the_time('F') . $after;
} elseif ( is_year() ) {// 年 存档
echo $before . get_the_time('Y') . $after;
} elseif ( is_single() && !is_attachment() ) {// 文章
if ( get_post_type() !='post') {// 自定义文章类型
$post_type = get_post_type_object(get_post_type());
$slug = $post_type->rewrite;
echo'<a href=''. $homeLink .'/'. $slug['slug'] .'/'>'. $post_type->labels->singular_name .'</a> '. $delimiter .' ';
echo $before . get_the_title() . $after;
} else {// 文章 post
$cat = get_the_category(); $cat = $cat[0];
$cat_code = get_category_parents($cat, TRUE,' '. $delimiter .' ');
echo $cat_code = str_replace ('<a','<a ', $cat_code );
echo $before . get_the_title() . $after;
}
} elseif ( !is_single() && !is_page() && get_post_type() !='post') {
$post_type = get_post_type_object(get_post_type());
echo $before . $post_type->labels->singular_name . $after;
} elseif ( is_attachment() ) {// 附件
$parent = get_post($post->post_parent);
$cat = get_the_category($parent->ID); $cat = $cat[0];
echo'<a href=''. get_permalink($parent) .''>'. $parent->post_title .'</a> '. $delimiter .' ';
echo $before . get_the_title() . $after;
} elseif ( is_page() && !$post->post_parent ) {// 页面
echo $before . get_the_title() . $after;
} elseif ( is_page() && $post->post_parent ) {// 父级页面
$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 $before . get_the_title() . $after;
} elseif ( is_search() ) {// 搜索结果
echo $before ;
printf( __('Search Results for: %s','cmp'), get_search_query() );
echo $after;
} elseif ( is_tag() ) {//标签 存档
echo $before ;
printf( __('Tag Archives: %s','cmp'), single_tag_title('', false ) );
echo $after;
} elseif ( is_author() ) {// 作者存档
global $author;
$userdata = get_userdata($author);
echo $before ;
printf( __('Author Archives: %s','cmp'), $userdata->display_name );
echo $after;
} elseif ( is_404() ) {// 404 页面
echo $before;
_e('Not Found','cmp');
echo $after;
}
if ( get_query_var('paged') ) {// 分页
if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() )
echo sprintf( __('( Page %s )','cmp'), get_query_var('paged') );
}
echo'</div>';
}
}
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