Wordpress常用设置代码

主题文件夹中functions.php文件

//移除 WordPress 文章标题前的“私密/密码保护”提示文字
function remove_title_prefix($content) {
	return '%s';//这个不能省略
}
add_filter('private_title_format', 'remove_title_prefix');//私密
add_filter('protected_title_format', 'remove_title_prefix');//密码保护



//上传的多媒体重命名
add_filter('wp_handle_upload_prefilter', 'custom_upload_filter' );
function custom_upload_filter( $file ){
	date_default_timezone_set("Asia/Shanghai");//设置下时区
	$info = pathinfo($file['name']);
    $ext = $info['extension'];
    $filedate = date('YmdHis').rand(10,99);//为了避免时间重复，再加一段2位的随机数
    $file['name'] = $filedate.'.'.$ext;
    return $file;
}

//标签云样式相关修改，主要修改$newargs参数
add_filter( 'widget_tag_cloud_args', 'theme_tag_cloud_args' );
function theme_tag_cloud_args( $args ){
	$newargs = array(
		'smallest' => 8, //最小字号
		'largest' => 22, //最大字号
		'unit' => 'pt', //字号单位，可以是pt、px、em或%
		'number' => 30, //显示个数
		'format' => 'flat',//列表格式，可以是flat、list或array
		'separator' => "\n", //分隔每一项的分隔符
		'orderby' => 'name',//排序字段，可以是name或count
		'order' => 'DESC', //升序或降序，ASC或DESC
		'exclude' => null, //结果中排除某些标签
		'include' => null, //结果中只包含这些标签
		'link' => 'view', //taxonomy链接，view或edit
		'taxonomy' => 'post_tag', //调用哪些分类法作为标签云
	);
	//$return = array_merge( $args, $newargs);//用这个的话是默认标签云样式
	$return = array_merge(array( 'largest' => 22, 'number' => 4,'orderby'=>'count'), $newargs);
	return $return;
}



//去除分类标志代码
//修改后重新保存“固定链接”
add_action( 'load-themes.php',  'no_category_base_refresh_rules');
add_action('created_category', 'no_category_base_refresh_rules');
add_action('edited_category', 'no_category_base_refresh_rules');
add_action('delete_category', 'no_category_base_refresh_rules');
function no_category_base_refresh_rules() {
    global $wp_rewrite;
    $wp_rewrite -> flush_rules();
}
// register_deactivation_hook(__FILE__, 'no_category_base_deactivate');
// function no_category_base_deactivate() {
//  remove_filter('category_rewrite_rules', 'no_category_base_rewrite_rules');
//  // We don't want to insert our custom rules again
//  no_category_base_refresh_rules();
// }
// Remove category base
add_action('init', 'no_category_base_permastruct');
function no_category_base_permastruct() {
    global $wp_rewrite, $wp_version;
    if (version_compare($wp_version, '3.4', '<')) {
        // For pre-3.4 support
        $wp_rewrite -> extra_permastructs['category'][0] = '%category%';
    } else {
        $wp_rewrite -> extra_permastructs['category']['struct'] = '%category%';
    }
}
// Add our custom category rewrite rules
add_filter('category_rewrite_rules', 'no_category_base_rewrite_rules');
function no_category_base_rewrite_rules($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 $category_rewrite;
}
// Add 'category_redirect' query variable
add_filter('query_vars', 'no_category_base_query_vars');
function no_category_base_query_vars($public_query_vars) {
    $public_query_vars[] = 'category_redirect';
    return $public_query_vars;
}
// Redirect if 'category_redirect' is set
add_filter('request', 'no_category_base_request');
function no_category_base_request($query_vars) {
    //print_r($query_vars); // For Debugging
    if (isset($query_vars['category_redirect'])) {
        $catlink = trailingslashit(get_option('home')) . user_trailingslashit($query_vars['category_redirect'], 'category');
        status_header(301);
        header("Location: $catlink");
        exit();
    }
    return $query_vars;
}

//-----------------------------------------------
/*
为特定文章添加特定css最简单的方式.
*/
/*添加自定义CSS的meta box*/
add_action('admin_menu', 'cwp_add_my_custom_css_meta_box');
/*保存自定义CSS的内容*/
add_action('save_post', 'cwp_save_my_custom_css');
/*将自定义CSS添加到特定文章(适用于Wordpress中文章、页面、自定义文章类型等)的头部*/
add_action('wp_head','cwp_insert_my_custom_css');
function cwp_add_my_custom_css_meta_box() {
    add_meta_box('my_custom_css', '自定义CSS', 'cwp_output_my_custom_css_input_fields', 'post', 'normal', 'high');
    add_meta_box('my_custom_css', '自定义CSS', 'cwp_output_my_custom_css_input_fields', 'page', 'normal', 'high');
}
function cwp_output_my_custom_css_input_fields() {
    global $post;
    echo '';
    echo ''.get_post_meta($post->ID,'_my_custom_css',true).'';
}
function cwp_save_my_custom_css($post_id) {
    if (!wp_verify_nonce($_POST['my_custom_css_noncename'], 'custom-css')) return $post_id;
    if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) return $post_id;
    $my_custom_css = $_POST['my_custom_css'];
    update_post_meta($post_id, '_my_custom_css', $my_custom_css);
}
function cwp_insert_my_custom_css() {
    if (is_page() || is_single()) {
        if (have_posts()) : while (have_posts()) : the_post();
        echo '';
        endwhile; endif;
        rewind_posts();
    }
}

//-----------------------------------------------
//在后台文章列表增加一列数据
add_filter( 'manage_posts_columns', 'ashuwp_customer_posts_columns' );
function ashuwp_customer_posts_columns( $columns ) {
	$columns['views'] = '浏览次数';
	return $columns;
}
//输出浏览次数
add_action('manage_posts_custom_column', 'ashuwp_customer_columns_value', 10, 2);
function ashuwp_customer_columns_value($column, $post_id){
	if($column=='views'){
		$count = get_post_meta($post_id, 'post_views_count', true);
		if(!$count){
			$count = 0;
		}
		echo $count;
	}
	return;
}
//---------------------------------------------------
remove_action('wp_head','wp_shortlink_wp_head',10, 0);//删除源文件中短链接
/*Removes prev and next links*/
remove_action('wp_head', 'adjacent_posts_rel_link_wp_head');
remove_action('wp_head', 'wp_generator');//removes meta name generator.去掉
//---------------------------------------------------




//---------------------------------------------------
add_action('init', 'html_page_permalink', -1);
/*页面，后缀加.html*/
function html_page_permalink() {
	global $wp_rewrite;
	if ( !strpos($wp_rewrite->get_page_permastruct(), '.html')){
		$wp_rewrite->page_structure = $wp_rewrite->page_structure . '.html';
	}
}
//---------------------------------------------------
///移除登陆框中wordpress官方链接
//默认的wordpress登陆框带有wordpress官方的logo和链接，通过以下函数去除链接。
add_filter( 'login_headerurl', 'custom_loginlogo_url' );
function custom_loginlogo_url($url){
    return home_url( '/' );
}
//更改登陆框logo图标
//如果你对于只去除logo链接不是很知足，可以通过函数代码替换logo。
//注意：echo ”中填写自己的logo路径即可。
add_action('login_head', 'my_custom_login_logo');
function my_custom_login_logo(){
    echo '';
}
//---------------------------------------------------	

//------------使用smtp发邮件-------------------------
function MBT_mail_smtp( $phpmailer ) {
 $phpmailer->IsSMTP();
 $phpmailer->SMTPAuth = true;//启用SMTPAuth服务
 $phpmailer->Port = 465;//MTP邮件发送端口，这个和下面的对应，如果这里填写25，则下面为空白
 $phpmailer->SMTPSecure ="ssl";//是否验证 ssl，这个和上面的对应，如果不填写，则上面的端口须为25
 $phpmailer->Host = "smtp.xxxx.com";//邮箱的SMTP服务器地址，如果是QQ的则为：smtp.exmail.qq.com
 $phpmailer->Username = "[email protected]";//你的邮箱地址
 $phpmailer->Password ="123456789";//你的邮箱登录密码
}
add_action('phpmailer_init', 'MBT_mail_smtp');
//下面这个很重要，得将发件地址改成和上面smtp邮箱一致才行。
function MBT_wp_mail_from( $original_email_address ) {
 return '[email protected]';
}
add_filter( 'wp_mail_from', 'MBT_wp_mail_from' );
//---------------------------------------------------
//隐藏admin Bar
function hide_admin_bar($flag) {
return false;
}
add_filter('show_admin_bar','hide_admin_bar');
//---------------------------------------------------
//用户修改密码后，禁止给管理员发送邮件
if(!function_exists( 'wp_password_change_notification' ) ) {
 function wp_password_change_notification( $user ) {
 return;
 }
}
//禁止给用户自己发修改密码成功通知邮件
add_filter( 'send_password_change_email', '__return_false' );
//关闭新用户注册通知站长的邮件
add_filter( 'wp_new_user_notification_email_admin', '__return_false' );
//---------------------------------------------------
//后台顶部bar，
//屏蔽wordpress后台（仪表盘）顶部logo
function annointed_admin_bar_remove() {
	global $wp_admin_bar;
	/* Remove their stuff */
	$wp_admin_bar->remove_menu('wp-logo');
}
add_action('wp_before_admin_bar_render', 'annointed_admin_bar_remove', 0);
//---------------------------------------------------

//---------------------------------------------------
//适合2019/8/%post_id%.html分页链接修正
//解析url的钩子
add_filter('post_rewrite_rules', 'add_custom_post_rewrite_rules');
function add_custom_post_rewrite_rules($rules) {
	$custom_rules = array('(\d+)/(\d+)/(\d+)_(\d+)\.html$' => 'index.php?p=$matches[3]&page=$matches[4]',);
	//你想改的样子
	$rules = array_merge($custom_rules,$rules);
	return $rules;
}
//设置url钩子
add_filter('wp_link_pages_link', 'post_custom_rewrite_url');
function post_custom_rewrite_url($output){
	$preg = "/(.*)\/(.*)\/(\d+)\.html\/(\d+)/";//你目前的分页链接
	$output = preg_replace($preg, "$1/$2/$3_$4.html", $output);//要匹配的连接
	return $output;
}
//不许跳转
add_filter( 'redirect_canonical','post_custom_redirect_url');
function post_custom_redirect_url($output){
	return false;
}