WP主题函数常用整理

发表于 更新于

wp-config

wp-config.php

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//禁止更新

define('AUTOMATIC_UPDATER_DISABLED', true);

// SSL

$_SERVER['HTTPS'] = 'on'; 
define('FORCE_SSL_LOGIN', true); 
define('FORCE_SSL_ADMIN', true);
// 禁止编辑主题和升级安装
define('DISALLOW_FILE_EDIT', true);
define('DISALLOW_FILE_MODS', true);

// 版本数
define( 'WP_POST_REVISIONS', 5 );
// 回收站有效期
define( 'EMPTY_TRASH_DAYS', 7 );

//屏蔽所有错误
ini_set("display_errors","Off"); 
ini_set("error_reporting", E_ALL ); 
define("WP_DEBUG", false); 
define("WP_DEBUG_DISPLAY", false);


functions文件中

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add_filter('pre_site_transient_update_core',    function($a){return null;}); // 关闭核心提示
add_filter('pre_site_transient_update_plugins', function($a){return null;}); // 关闭插件提示 
add_filter('pre_site_transient_update_themes',  function($a){return null;}); // 关闭主题提示
remove_action('admin_init', '_maybe_update_core');    // 禁止 WordPress 检查更新
remove_action('admin_init', '_maybe_update_plugins'); // 禁止 WordPress 更新插件
remove_action('admin_init', '_maybe_update_themes');  // 禁止 WordPress 更新主题

移除更新系统邮件通知

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add_filter( 'auto_core_update_send_email', '__return_false' );

样式

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function admin_lettering(){
    echo'<link rel="stylesheet" style="text/css" href="'.get_stylesheet_directory_uri().'/bac-kui.css">';
    }
add_action('admin_head', 'admin_lettering');

将the_content()放到短代码中

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function custom_content(){
     
    $content = apply_filters( 'the_content', get_the_content(), get_the_ID() );
    return $content;
}
 
add_shortcode( 'custom_contents', 'custom_content' );

隐藏菜单以及插件

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add_filter( 'all_plugins', 'hide_plugins');
function hide_plugins($plugins)
{
    // 隐藏 你好，多莉 插件
    if(is_plugin_active('unlimited-elements-for-elementor-premium/unlimited-elements-pro.php')) {
        unset( $plugins['unlimited-elements-for-elementor-premium/unlimited-elements-pro.php'] );
    }
    // 隐藏 post series插件
    if(is_plugin_active('advanced-custom-fields-pro/acf.php')) {
        unset( $plugins['advanced-custom-fields-pro/acf.php'] );
    }
    if(is_plugin_active('jet-elements/jet-elements.php')) {
        unset( $plugins['jet-elements/jet-elements.php'] );
    }
    return $plugins;
}
 
add_action( 'admin_menu', function(){
    remove_menu_page( 'jet-dashboard' ); 
   remove_menu_page( 'edit.php?post_type=acf-field-group' ); //页面
   remove_menu_page( 'unlimitedelements' ); //页面
    
},9001,1);

短代码-自动截取简介

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function auto_excerpt($atts){
 $content = apply_filters( 'the_content', get_the_content(), get_the_ID() );
 $atts = shortcode_atts(array('num' => '200'),$atts);
 if(has_excerpt()){ $exc = get_the_excerpt();  } else { $exc = mb_strimwidth(strip_tags($content),0,$atts['num'],'...'); }
 
  return $exc;
}

add_shortcode('excerpts', 'auto_excerpt');


[excerpts num=200]

不写有默认值

面包屑导航函数

自定义文章自定义分类

分类页面包屑导航

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function be_taxonomy_breadcrumb() {
    // 定义分隔符
    $separator = ' &#62; ';

    // 获取当前术语
    $term = get_term_by('slug', get_query_var('term'), get_query_var('taxonomy'));
    $type_name = get_post_type();
    $post_type_labels = get_post_type_object($type_name)->labels->name;

    // 输出面包屑开头
    echo '<div class="breadcrumb"><i class="fa fa-home"></i> <a href="' . esc_url(get_home_url()) . '">Home</a>' . esc_html($separator);
    echo '<a href="' . esc_url(get_post_type_archive_link($type_name)) . '">' . esc_html($post_type_labels) . '</a>' . esc_html($separator);

    // 检查 $term 是否有效
    if ($term && !is_wp_error($term)) {
        $taxonomy_name = $term->taxonomy;

        // 创建所有父术语的列表
        $parent = $term->parent;
        $parents = [];
        while ($parent) {
            $parents[] = $parent;
            $new_parent = get_term_by('id', $parent, get_query_var('taxonomy'));
            $parent = $new_parent && !is_wp_error($new_parent) ? $new_parent->parent : 0;
        }

        // 如果有父术语，反转数组并输出
        if (!empty($parents)) {
            $parents = array_reverse($parents);
            foreach ($parents as $parent) {
                $item = get_term_by('id', $parent, get_query_var('taxonomy'));
                if ($item && !is_wp_error($item)) {
                    $url = get_bloginfo('url') . '/' . $item->taxonomy . '/' . $item->slug;
                    echo '<a href="' . esc_url($url) . '">' . esc_html($item->name) . '</a>' . esc_html($separator);
                }
            }
        }

        // 输出当前术语
        echo '<a href="' . esc_url(get_term_link($term->term_id, $taxonomy_name)) . '">' . esc_html($term->name) . '</a>';
    }

    echo '</div>';
}

add_shortcode('be_taxonomy_breadcrumbs', 'be_taxonomy_breadcrumb');


详情页导航

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function single_breadcrumbs() {
    $separator = ' / ';

    $post_id = get_the_ID();
    $type_name = get_post_type($post_id);

    $post_type_obj = get_post_type_object($type_name);
    if (!$post_type_obj) {
        return; // 如果文章类型无效，直接返回
    }
    $post_type_labels = $post_type_obj->labels->name;

    // 获取分类法（确保至少有一个分类法）
    $taxonomies = get_object_taxonomies($type_name);
    $taxonomy = !empty($taxonomies[1]) ? $taxonomies[1] : (!empty($taxonomies[0]) ? $taxonomies[0] : '');

    if (empty($taxonomy)) {
        return;
    }

    $terms = get_the_terms($post_id, $taxonomy);
    // 输出面包屑
    echo '<div class="breadcrumb"><i class="fa fa-home"></i> <a href="' . esc_url(get_home_url()) . '">Home</a>' . esc_html($separator);
    echo '<a href="' . esc_url(get_post_type_archive_link($type_name)) . '">' . esc_html($post_type_labels) . '</a>' . esc_html($separator);
    // 检查术语是否有效
    if ($terms && !is_wp_error($terms) && !empty($terms)) {
        $term = $terms[0]; // 取第一个术语
        $parent_id = $term->parent;

        // 如果存在父术语，输出父术语
        if ($parent_id) {
            $parent_term = get_term($parent_id, $taxonomy);
            if ($parent_term && !is_wp_error($parent_term)) {
                echo '<a href="' . esc_url(get_term_link($parent_id, $taxonomy)) . '">' . esc_html($parent_term->name) . '</a>' . esc_html($separator);
            }
        }

        // 输出当前术语
        echo '<a href="' . esc_url(get_term_link($term->term_id, $taxonomy)) . '">' . esc_html($term->name) . '</a>';
    }

    echo '</div>';
}

add_shortcode('single_breadcrumb', 'single_breadcrumbs');


面包屑导航修改版

可兼容自定义类别

2022.07.01 修正 自定义字段中显示name 变为label

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function get_hansel_and_gretel_breadcrumbs()
{
    // Set variables for later use
    // $here_text        = __( '<i class="fa fa-home"></i>' );
        $here_text        = __( '' );
    $home_link        = home_url('/');
    // $home_text        = __( 'Home' );
    $home_text        = '首页';
    $link_before      = '<span typeof="v:Breadcrumb">';
    $link_after       = '</span>';
    $link_attr        = ' rel="v:url" property="v:title"';
    $link             = $link_before . '<a' . $link_attr . ' href="%1$s">%2$s</a>' . $link_after;
    $delimiter        = ' &raquo; ';              // Delimiter between crumbs
    $before           = '<span class="current">'; // Tag before the current crumb
    $after            = '</span>';                // Tag after the current crumb
    $page_addon       = '';                       // Adds the page number if the query is paged
    $breadcrumb_trail = '';
    $category_links   = '';

    /** 
     * Set our own $wp_the_query variable. Do not use the global variable version due to 
     * reliability
     */
    $wp_the_query   = $GLOBALS['wp_the_query'];
    $queried_object = $wp_the_query->get_queried_object();

    // Handle single post requests which includes single pages, posts and attatchments
    if ( is_singular() ) 
    {
        /** 
         * Set our own $post variable. Do not use the global variable version due to 
         * reliability. We will set $post_object variable to $GLOBALS['wp_the_query']
         */
        $post_object = sanitize_post( $queried_object );

        // Set variables 
        $title          = apply_filters( 'the_title', $post_object->post_title );
        $parent         = $post_object->post_parent;
        $post_type      = $post_object->post_type;
        $post_id        = $post_object->ID;
        $post_link      = $before . $title . $after;
        $parent_string  = '';
        $post_type_link = '';

        if ( 'post' === $post_type ) 
        {
            // Get the post categories
            $categories = get_the_category( $post_id );
            if ( $categories ) {
                // Lets grab the first category
                $category  = $categories[0];

                $category_links = get_category_parents( $category, true, $delimiter );
                $category_links = str_replace( '<a',   $link_before . '<a' . $link_attr, $category_links );
                $category_links = str_replace( '</a>', '</a>' . $link_after,             $category_links );
            }
        }

        if ( !in_array( $post_type, ['post', 'page', 'attachment'] ) )
        {
            $post_type_object = get_post_type_object( $post_type );
            $archive_link     = esc_url( get_post_type_archive_link( $post_type ) );
            
            $post_type_link   = sprintf( $link, $archive_link, $post_type_object->label );
            
        }

        // Get post parents if $parent !== 0
        if ( 0 !== $parent ) 
        {
            $parent_links = [];
            while ( $parent ) {
                $post_parent = get_post( $parent );

                $parent_links[] = sprintf( $link, esc_url( get_permalink( $post_parent->ID ) ), get_the_title( $post_parent->ID ) );

                $parent = $post_parent->post_parent;
            }

            $parent_links = array_reverse( $parent_links );

            $parent_string = implode( $delimiter, $parent_links );
        }

        // Lets build the breadcrumb trail
        if ( $parent_string ) {
            $breadcrumb_trail = $parent_string . $delimiter . $post_link;
        } else {
            $breadcrumb_trail = $post_link;
        }

        if ( $post_type_link )
        
            $breadcrumb_trail = $post_type_link . $delimiter . $breadcrumb_trail;

        if ( $category_links )
            $breadcrumb_trail = $category_links . $breadcrumb_trail;
    }

    // Handle archives which includes category-, tag-, taxonomy-, date-, custom post type archives and author archives
    if( is_archive() )
    {
        if (    is_category()
             || is_tag()
             || is_tax()
        ) {
            // Set the variables for this section
            $term_object        = get_term( $queried_object );
            $taxonomy           = $term_object->taxonomy;
            $term_id            = $term_object->term_id;
            $term_name          = $term_object->name;
            $term_parent        = $term_object->parent;
            $taxonomy_object    = get_taxonomy( $taxonomy );
            // $current_term_link  = $before . $taxonomy_object->labels->singular_name . ': ' . $term_name . $after;
            $current_term_link  = $before  . $term_name . $after;
            $parent_term_string = '';

            if ( 0 !== $term_parent )
            {
                // Get all the current term ancestors
                $parent_term_links = [];
                while ( $term_parent ) {
                    $term = get_term( $term_parent, $taxonomy );

                    $parent_term_links[] = sprintf( $link, esc_url( get_term_link( $term ) ), $term->name );

                    $term_parent = $term->parent;
                }

                $parent_term_links  = array_reverse( $parent_term_links );
                $parent_term_string = implode( $delimiter, $parent_term_links );
            }

            if ( $parent_term_string ) {
                $breadcrumb_trail = $parent_term_string . $delimiter . $current_term_link;
            } else {
                $breadcrumb_trail = $current_term_link;
            }

        } elseif ( is_author() ) {

            $breadcrumb_trail = __( 'Author archive for ') .  $before . $queried_object->data->display_name . $after;

        } elseif ( is_date() ) {
            // Set default variables
            $year     = $wp_the_query->query_vars['year'];
            $monthnum = $wp_the_query->query_vars['monthnum'];
            $day      = $wp_the_query->query_vars['day'];

            // Get the month name if $monthnum has a value
            if ( $monthnum ) {
                $date_time  = DateTime::createFromFormat( '!m', $monthnum );
                $month_name = $date_time->format( 'F' );
            }

            if ( is_year() ) {

                $breadcrumb_trail = $before . $year . $after;

            } elseif( is_month() ) {

                $year_link        = sprintf( $link, esc_url( get_year_link( $year ) ), $year );

                $breadcrumb_trail = $year_link . $delimiter . $before . $month_name . $after;

            } elseif( is_day() ) {

                $year_link        = sprintf( $link, esc_url( get_year_link( $year ) ),             $year       );
                $month_link       = sprintf( $link, esc_url( get_month_link( $year, $monthnum ) ), $month_name );

                $breadcrumb_trail = $year_link . $delimiter . $month_link . $delimiter . $before . $day . $after;
            }

        } elseif ( is_post_type_archive() ) {

            $post_type        = $wp_the_query->query_vars['post_type'];
            $post_type_object = get_post_type_object( $post_type );
            
            $breadcrumb_trail = $before . $post_type_object->label . $after;

        }
    }   

    // Handle the search page
    if ( is_search() ) {
        $breadcrumb_trail = __( 'Search query for: ' ) . $before . get_search_query() . $after;
    }

    // Handle 404's
    if ( is_404() ) {
        $breadcrumb_trail = $before . __( 'Error 404' ) . $after;
    }

    // Handle paged pages
    if ( is_paged() ) {
        $current_page = get_query_var( 'paged' ) ? get_query_var( 'paged' ) : get_query_var( 'page' );
        $page_addon   = $before . sprintf( __( ' ( Page %s )' ), number_format_i18n( $current_page ) ) . $after;
    }

    $breadcrumb_output_link  = '';
    $breadcrumb_output_link .= '<div class="breadcrumb">';
    if (    is_home()
         || is_front_page()
    ) {
        // Do not show breadcrumbs on page one of home and frontpage
        if ( is_paged() ) {
            $breadcrumb_output_link .= $here_text ;
            $breadcrumb_output_link .= '<a href="' . $home_link . '">' . $home_text . '</a>';
            $breadcrumb_output_link .= $page_addon;
        }
    } else {
        // $breadcrumb_output_link .= $here_text . $delimiter;
         $breadcrumb_output_link .= $here_text ;
        $breadcrumb_output_link .= '<a href="' . $home_link . '" rel="v:url" property="v:title">' . $home_text . '</a>';
        $breadcrumb_output_link .= $delimiter;
        $breadcrumb_output_link .= $breadcrumb_trail;
        $breadcrumb_output_link .= $page_addon;
    }
    $breadcrumb_output_link .= '</div><!-- .breadcrumbs -->';

    return $breadcrumb_output_link;
   
}

add_shortcode('breadcrumbs', 'get_hansel_and_gretel_breadcrumbs');

小部件Twig 模板引擎获取获取文章中第一张图为缩略图

Twig是无法实现的，通过PHP函数才能实现
PHP函数放在function中

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function catch_the_image( $post_content ) {
    // global $post, $posts;
    $first_img = '';
    ob_start();
    ob_end_clean();
    $output = preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post_content, $matches);
    $first_img = $matches [1] [0];
 
    echo $first_img;
}

利用wordpress钩子函数

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add_action('auto_img','catch_the_image');

图片src,在post list循环中使用

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{{do_action('auto_img', item.post_list.content|wpautop|raw) }}

图片URL引号中的内容正则表达式

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$output = preg_match_all("/(.+\.(jpg|gif|bmp|bnp|png))/", $str, $matches);

add_filter获取方式，可传参

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function f_catch_the_image( $post_content ) {
    // global $post, $posts;
    $first_img = '';
    ob_start();
    ob_end_clean();
    $output = preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post_content, $matches);
    $first_img = $matches [1] [0];
    return $first_img;
}
add_filter( 'get_img', 'f_catch_the_image', 10, 3 );

接收结果

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{% set img_content = apply_filters('get_img', item.post_list.content|wpautop|raw) %}

完美的缩略图获取判断

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{% if item.post_list.image is empty %}
     {% if img_content is empty %}
        <img src="{{uc_assets_url}}/{{ random(1, 5) }}.jpg">
     {% else %} 
        <img src="{{do_action('auto_img', item.post_list.content|wpautop|raw) }}">
     {% endif %}    
{% else %} 
    <img src="{{item.post_list.image}}" {{item.post_list.image_attributes|raw}}>
{% endif %}

WordPress中PHP配置的调整

更新wp-config.php文件

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@ini_set('upload_max_filesize','128M');
@ini_set('post_max_size','128M');
@ini_set('memory_limit','256M');
@ini_set('max_execution_time','300');
@ini_set('max_input_time','300');

部分国外主机是更新.htaccess文件

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php_value upload_max_filesize 128M
php_value post_max_size 128M
php_value memory_limit 256M
php_value max_execution_time 300
php_value max_input_time 300

子主题路径

url路径

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<?php echo get_stylesheet_directory_uri();?>

绝对路径

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<?php echo get_stylesheet_directory();?>

指定子分类 短代码

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function catelist($atts){

 $atts = shortcode_atts(array( 'id' => '0', ), $atts );

 $args = array('child_of' => $atts['id'], 'hide_empty' => 0);
 $categories = get_categories($args);

     if ($categories) {
        $output = "<ul class='list-cate'>";

         foreach ($categories as $category) {
             $output .= sprintf(
             "<li class='cat-%s'><a href="%s" title='%s'>%s</a></li>",
             $category->slug,
             get_category_link($category->term_id),
             sprintf(__('View all posts in %s'), $category->name),
             $category->name
         );
     }

 $output .= "</ul>";

 }
 return  $output;
}

输出 [cate id=1]

国外在线聊天常用链接

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<!-- WhatsApp -->
<a href="https://api.whatsapp.com/send?phone=+17638166923&text=Hello">WhatsApp</a>
<!-- 手机端 -->
<a href="whatsapp://send?phone=+17638166923&text=Hello">WhatsApp</a>

<!-- Skype -->
skype:17638166923?call

transposh自动翻译

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[tp widget="flags/tpw_flags_css.php"]
[tp widget="flags/tpw_flags.php"]
[tp widget="default/tpw_default.php"]
[tp widget="dropdown/tpw_image_dropdown.php"]
[tp widget="flagslist /tpw_list_with_flags_css.php"]
[tp widget="flagslist /tpw_list_with_flags.php"]
[tp widget="select2 /tpw_select2.php"]

php中输出短代码

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<?php echo do_shortcode('[tp widget="default/tpw_default.php"]'); ?>

文章浏览次数

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function gt_get_post_view() {
    $count = get_post_meta( get_the_ID(), 'post_views_count', true );
    return "$count views";
}
function gt_set_post_view() {
    $key = 'post_views_count';
    $post_id = get_the_ID();
    $count = (int) get_post_meta( $post_id, $key, true );
    $count++;
    update_post_meta( $post_id, $key, $count );
}
function gt_posts_column_views( $columns ) {
    $columns['post_views'] = 'Views';
    return $columns;
}
function gt_posts_custom_column_views( $column ) {
    if ( $column === 'post_views') {
        echo gt_get_post_view();
    }
}
add_filter( 'manage_posts_columns', 'gt_posts_column_views' );
add_action( 'manage_posts_custom_column', 'gt_posts_custom_column_views' );


add_shortcode( 'the_post_views', 'gt_get_post_view' );
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// 循环中使用
<?php gt_set_post_view(); ?>

// 单页中使用
<?php gt_get_post_view(); ?>


配合短代码中输出

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[the_post_views]

自定义分类 显示代码

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// 在详情页
function  custom_category(){
    global $post;
    $terms = wp_get_post_terms( $post->ID, 'products',array("fields" => "names"));
    echo $terms[0]; #displays the output
}
add_shortcode( 'custom_categories', 'custom_category' );

// 在分类页
function cate_page_custom_category(){
    $terms = get_queried_object();
    echo $terms->label;
}
 
add_shortcode( 'cate_page_custom_categories', 'cate_page_custom_category' );


参数拓展

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//Returns All Term Items for "my_taxonomy"
 $term_list = wp_get_post_terms($post->ID, 'my_taxonomy', array("fields" => "all")); 
 print_r($term_list); 
 //Returns Array of Term Names for "my_taxonomy" 
 $term_list = wp_get_post_terms($post->ID, 'my_taxonomy', array("fields" => "names")); 
 print_r($term_list); 
 //Returns Array of Term ID's for "my_taxonomy" 
 $term_list = wp_get_post_terms($post->ID, 'my_taxonomy', array("fields" => "ids")); 
 print_r($term_list); 
 //Echo a single value - $term_list is an array of objects. You must select one of the // array entries before you can reference its properties (fields). 
 $term_list = wp_get_post_terms($post->ID, 'my_taxonomy', array("fields" => "all")); 
 echo $term_list[0]->description ;

手机端判断

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function get_is_mobile(){ 
    //get_ 传递
    $var = wp_is_mobile();//wordpress自带函数
    return $var;
}


// 传递
{% set is_mobile = getByPHPFunction('get_is_mobile') %}

//判断
{% if is_mobile == true %}

{% endif %}

WooCommerce 隐藏全部产品价格

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add_filter( 'woocommerce_get_price_html', 'react2wp_woocommerce_hide_product_price' );
function react2wp_woocommerce_hide_product_price( $price ) {
    return '';
}

删除添加到购物车按钮并禁用购买功能

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add_filter ( 'woocommerce_is_purchasable' , '__return_false' ); // 禁用购买功能并从普通产品中删除添加到购物车按钮
remove_action ( 'woocommerce_single_variation' , 'woocommerce_single_variation' , 10 ); // 从变化中移除价格
remove_action ( 'woocommerce_single_variation' , 'woocommerce_single_variation_add_to_cart_button' , 20 ); // 从变化中删除添加到购物车按钮

从商店页面/存档隐藏添加到购物车按钮，同时保留购买功能

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function react2wp_is_shop_remove_add_to_cart_button() {
   if ( is_shop() ) {
      add_filter( 'woocommerce_is_purchasable', '__return_false' );
   }
}

add_action( 'wp_head', 'react2wp_is_shop_remove_add_to_cart_button' );

从类别页面删除添加到购物车按钮，同时保留购买功能

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function react2wp_is_shop_remove_add_to_cart_button() {
   if ( is_product_category() ) {
      add_filter( 'woocommerce_is_purchasable', '__return_false' );
   }
}

add_action( 'wp_head', 'react2wp_is_shop_remove_add_to_cart_button' );

从单个产品页面删除添加到购物车按钮，同时保留购买功能

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function react2wp_is_shop_remove_add_to_cart_button() {
   if ( is_product() ) {
      add_filter( 'woocommerce_is_purchasable', '__return_false' );
   }
}

add_action( 'wp_head', 'react2wp_is_shop_remove_add_to_cart_button' );

直接购买（多sku有效）

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/* Dynamic Button for Simple & Variable Product *//**
* Main Functions
*/function sbw_wc_add_buy_now_button_single()
{
global $product;
printf( '<button id="sbw_wc-adding-button" type="submit" name="sbw-wc-buy-now" value="%d" class="single_add_to_cart_button buy_now_button button alt">%s</button>', $product->get_ID(), esc_html__( 'Buy Now', 'sbw-wc' ) );
}add_action( 'woocommerce_after_add_to_cart_button', 'sbw_wc_add_buy_now_button_single' );/*** Handle for click on buy now ***/
function sbw_wc_handle_buy_now()
{
if ( !isset( $_REQUEST['sbw-wc-buy-now'] ) )
{
return false;
}WC()->cart->empty_cart();$product_id = absint( $_REQUEST['sbw-wc-buy-now'] );
$quantity = absint( $_REQUEST['quantity'] );if ( isset( $_REQUEST['variation_id'] ) ) {$variation_id = absint( $_REQUEST['variation_id'] );
WC()->cart->add_to_cart( $product_id, 1, $variation_id );}else{
WC()->cart->add_to_cart( $product_id, $quantity );
}wp_safe_redirect( wc_get_checkout_url() );
exit;
}add_action( 'wp_loaded', 'sbw_wc_handle_buy_now' );

隐藏产品评论

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/**
 * Disable reviews.
 */
function iconic_disable_reviews() {
    remove_post_type_support( 'product', 'comments' );
}

add_action( 'init', 'iconic_disable_reviews' );

购物车增加件数自动刷新

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add_action( 'wp_footer', 'bbloomer_cart_refresh_update_qty' );

function bbloomer_cart_refresh_update_qty() {
    if (is_cart()) {
        ?>
        <script type="text/javascript">
        jQuery('div.woocommerce').on('change', 'input.qty', function(){
            setTimeout(function() {
                jQuery('[name="update_cart"]').trigger('click');
            }, 100 );
        });
        </script>
        <?php
    }
}

移除子菜单

原链接为 /wp-admin/edit.php?post_type=coforpaypal_order&page=checkout-for-paypal-addons

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remove_submenu_page('edit.php?post_type=coforpaypal_order','checkout-for-paypal-addons');

自定义wooc按钮

自定buy按钮

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add_filter( 'woocommerce_product_add_to_cart_text' , 'custom_select_options_text' ); 
 function custom_select_options_text() { 
 global $product; 
 $product_type = $product->product_type; 
 switch ( $product_type ) { 
 case 'subscription': 
 return __( 'Options', 'woocommerce' ); /*change 'Options' for Simple Subscriptions */ 
 case 'variable-subscription': 
 return __( 'Options', 'woocommerce' ); /*change 'Options' for Variable Subscriptions */ 
 case 'variable': 
 return __( 'Options', 'woocommerce' ); /*change 'Options' for Variable Products */ 
 case 'simple': 
 return __( 'Add to Cart', 'woocommerce' ); /*change 'Add to Cart' for Simple Products */ 
 break; 
 } 
 }

自定义类别动态链接

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function custom_product_links(){
    $links = '<a class="menu-link" href="'.get_post_type_archive_link('product').'">Products</ a>';
  return $links;
}
add_shortcode('custom_product_link', 'custom_product_links');

add cart 后面加按钮

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function add_content_after_addtocart() {

    // get the current post/product ID
    $current_product_id = get_the_ID();

    // get the product based on the ID
    $product = wc_get_product( $current_product_id );

    // get the "Checkout Page" URL
    $checkout_url = WC()->cart->get_checkout_url();

    // run only on simple products
    if( $product->is_type( 'simple' ) ){
        echo '< a href="'.$checkout_url.'?add-to-cart='.$current_product_id.'" class="single_add_to_cart_button button alt">Checkout</ a>';
    }
}
add_action( 'woocommerce_after_add_to_cart_button', 'add_content_after_addtocart' );

最简单的实现浏览数 Post View

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// 加到functions.php

// THIS FUNCTION RETURS NUMBER OF VIEWS FOR A POST
function getPostViewCount(){
    $postID = get_the_ID();
    $count_key = 'post_views_count';
    $count = get_post_meta($postID, $count_key, true);
    if($count==''){
          delete_post_meta($postID, $count_key);
          add_post_meta($postID, $count_key, '1');
          return 1;
    }
    if(intval($count) > 1000){
         return number_format($count/1000,1).'K';
    }elseif(intval($count) > 1000000){
         return number_format($count/1000000,1).'M';
    }else{
         return $count;
    }
}

// THIS FUNCTION COUNTS POST VIEWS
function setPostViewCount() {
    $postID = get_the_ID();
    $count_key = 'post_views_count';
    $count = get_post_meta($postID, $count_key, true);
    if($count==''){
        $count = 0;
        delete_post_meta($postID, $count_key);
        add_post_meta($postID, $count_key, '0');
    }else{
        $count++;
        update_post_meta($postID, $count_key, $count);
    }
    return $count;
}

// single中使用
setPostViews();
//category中使用
getPostViewCount()

小部件Twig 列表模板中使用

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function getPostViewCounts($postsid){
    $postID = $postsid;
    $count_key = 'post_views_count';
    $count = get_post_meta($postID, $count_key, true);
    if($count==''){
          delete_post_meta($postID, $count_key);
          add_post_meta($postID, $count_key, '1');
          return 1;
    }
    if(intval($count) > 1000){
         return number_format($count/1000,1).'K';
    }elseif(intval($count) > 1000000){
         return number_format($count/1000000,1).'M';
    }else{
         return $count;
    }
}

add_filter( 'getPostViewCount', 'getPostViewCounts', 10, 3 );

// 小部件Twig获取

{% set postlike = apply_filters('postlike', item.post_list.id) %}

{% set PostViewCount = apply_filters('getPostViewCount', item.post_list.id) %}

{{postlike|raw}}

点赞小红心

完整代码下载
四个步骤
1、将 CSS 添加到主题的主样式表中。
2、将 文件添加到主题的 js 文件夹。并向其中添加 simple-likes-public.js
3、将 post-like.php 的内容添加到主题的 functions.php 文件中。
4、循环中使用 echo get_simple_likes_button( get_the_ID() );
通过确保按钮函数中的第二个参数设置为“1”，将按钮添加到主题中的任何评论 — echo get_simple_likes_button( get_comment_ID(), 1 );
简码 [jmliker] 

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require_once(get_stylesheet_directory().'/post-like.php');

<link rel='stylesheet' href="<?php echo get_stylesheet_directory_uri();?>/css/simple-likes-public.css" >

-注意：如果是子主题中，post-like.php中，第29行要修改为 get_stylesheet_directory_uri()-

如果访问wp-login.php则指定跳转

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add_action('init','fanly_custom_login');
function fanly_custom_login(){
    global $pagenow;
    if( 'wp-login.php' == $pagenow ) {
        wp_redirect(get_permalink('11'));//跳转到首页
        die();
    }
}

加个菜单

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add_action('admin_menu', 'add_custom_menu_link');
function add_custom_menu_link()
{
    $links= get_home_url()."/wp-admin/admin.php?page=e-form-submissions#/";
    add_menu_page('留言表单', '留言表单', 'read', $links, '', 'dashicons-text', 6);
}

给table 通过JS 加个div

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add_action( 'wp_footer', 'add_js_to_wp_footer' );
function add_js_to_wp_footer(){ ?>
    <script type="text/javascript">
    jQuery(document).ready(function($) {
        $(function() {
            $('table').wrap('<div class="table-responsive"></div>');
        })
    })
    </script>
<?php }

query acf自定义字段输出

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$args = array('showposts' => 8, 'post_type' => 'post',
                'meta_query' => array('relation' => 'OR', 
                                      array('key' => 'special', 'value' => 'feature_products', 'compare' => 'LIKE')));
               $the_query = new WP_Query($args);
               if ($the_query->have_posts()) : while ($the_query->have_posts()) : $the_query->the_post(); 


                   //acf自定义字段 输出  post列表  acf 字段 special 值为feature Products 显示  这里部分书写存在有误

宝塔 数据库自动重启任务

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pgrep -x mysqld &> /dev/null
if [ $? -ne 0 ]
then
echo "At time: `date` : Mysql is stop.">> /data/log/mysql_auto_start.log
/etc/init.d/mysqld start
else
echo "Mysql server is running."
fi

使用acf自定义字段替换用户默认avatar图

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function replace_default_avatar($avatar, $id_or_email, $size, $default, $alt) {
    // 获取用户ID
    if (is_numeric($id_or_email)) {
        $user_id = (int) $id_or_email;
    } elseif (is_object($id_or_email)) {
        if (!empty($id_or_email->user_id)) {
            $user_id = (int) $id_or_email->user_id;
        }
    } else {
        $user = get_user_by('email', $id_or_email);
        $user_id = $user ? $user->ID : null;
    }

    // 如果用户ID存在，获取ACF自定义字段user_img
    if ($user_id) {
        $user_img = get_field('user_img', 'user_' . $user_id);
        if ($user_img) {
            // 替换默认头像
            $avatar = '<img src="' . esc_url($user_img['url']) . '" alt="' . esc_attr($alt) . '" width="' . esc_attr($size) . '" height="' . esc_attr($size) . '" class="avatar avatar-' . esc_attr($size) . ' photo" />';
        }
    }

    return $avatar;
}
add_filter('get_avatar', 'replace_default_avatar', 10, 5);

自定义文章类型single页面下相关产品

随机当前文章所属分类下的文章

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function single_relate_pro_list() {
    // 获取当前文章的分类
    $postcat = get_the_terms(get_the_ID(), 'products');

    if (!empty($postcat) && !is_wp_error($postcat)) {
        $args = array(
            'post_type' => 'product',
            'posts_per_page' => 4,
            'orderby'=> 'rand',
            'tax_query' => array(
                array(
                    'taxonomy' => 'products',
                    'field'    => 'term_id',
                    'terms'    => $postcat[0]->term_id,
                    
                ),
            ),
        );

        $output = "<ul class='relate'>";
        $query = new WP_Query($args);

        if ($query->have_posts()) {
            while ($query->have_posts()) {
                $query->the_post();
                $output .= sprintf(
                    "<li><a href='%s'><img src='%s' alt='%s'><h3>%s</h3></a></li>",
                    get_the_permalink(),
                    get_the_post_thumbnail_url(),
                    get_the_title(),
                    get_the_title()
                );
            }
            wp_reset_postdata();
        } else {
            $output .= "<li>No related products found</li>";
        }

        $output .= "</ul>";
    } else {
        $output = "<ul class='relate'><li>No related products found</li></ul>";
    }

    return $output;
}
add_shortcode('single_relate_pro_lists', 'single_relate_pro_list');

后台自定义分类管理列表增加列方法

自定义分类products 管理列表显示 通过acf增加的自定义字段cate_banner,同时显示在倒数第二个列
如图

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function add_custom_taxonomy_column($columns,$taxonomy='products'){
    if ($taxonomy === 'products') {
     // 获取所有列的键，按顺序排列
        $column_keys = array_keys($columns);
        // 获取倒数第二个键
        $last_second_key = end($column_keys);
        
        $new_columns = [];
        foreach ($column_keys as $key) {
            if ($key === $last_second_key) {
                $new_columns['cate_banner'] = '横幅大图';
            }
            $new_columns[$key] = $columns[$key];
        }
        
         return $new_columns;
    }
        
    return $columns;
}
add_filter( "manage_edit-products_columns", 'add_custom_taxonomy_column', 10,2);
// manage_edit-自定义分类名_columns
function custom_column_content( $value, $column_name, $tax_id ){
    
    
    switch ( $column_name ) {
 
        case 'cate_banner' :
            $cate_banner = get_field('cate_banner', 'products_'.$tax_id );
            if(isset($category_thumb)){
             $thumb = $cate_banner["sizes"]["medium"];
            }
            if ($cate_banner)
                //var_dump();
                echo '<img src="'.esc_url($thumb).'">';
            else
                echo "—"; 
            break;
 
        
    }
    
}
add_action( "manage_products_custom_column", 'custom_column_content', 10, 3);
// manage_自定义分类名_custom_column

自定义文章类型product

注意 manage_自定义文章类型名_posts_columns
结合ACF实现推荐首页显示

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add_filter( 'manage_product_posts_columns', 'set_custom_edit_book_columns' );
add_action( 'manage_product_posts_custom_column' , 'custom_book_column', 10, 2 );
function set_custom_edit_book_columns($columns) {
    unset( $columns['author'] );
    
 $columns['hot_index'] = __( '推荐', 'Sticky' );
     
    return $columns;
}

function custom_book_column( $column, $post_id ) {
    switch ( $column ) {
 
        case 'hot_index' :
            $hot_indexs = get_field('hot_index', $post_id );
            if ($hot_indexs)
                echo "<b style='color:#f00;'>已推荐</b>";
            else
                echo "否";
            break;
 
        
    }
}

自定义post type 去除URL中的slug

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function km_remove_cpt_slug( $post_link, $post ) {
    if ( 'product' === $post->post_type && 'publish' === $post->post_status ) {
        $post_link = str_replace( '/' . $post->post_type . '/', '/', $post_link );
        if ( ! is_admin() ) {
            $post_link.='.html';
        }
    }
    
    return $post_link;
}
add_filter( 'post_type_link', 'km_remove_cpt_slug', 10, 2 );

/**
 * Have WordPress match postname to any of our public post types (post, page, my-cpt-slug).
 * All of our public post types can have /post-name/ as the slug, so they need to be unique across all posts.
 * By default, WordPress only accounts for posts and pages where the slug is /post-name/.
 *
 * @param $query The current query.
 */
function km_add_cpt_post_names_to_main_query( $query ) {
    
    if (
        ! $query->is_main_query()
        || ! isset( $query->query['page'] )
        || 2 !== count( $query->query )
        || empty( $query->query['name'] )
    ) {
        return;
    }

    $query->set( 'post_type', array( 'product' ) );
}
add_action( 'pre_get_posts', 'km_add_cpt_post_names_to_main_query' );

Elementor 表单过滤违禁词

在Settings > Discussion > Comment设置违禁词

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add_action( 'elementor_pro/forms/validation', function($record, $ajax_handler) {
    $disallowed_keys = get_option('disallowed_keys', '');
    if (empty($disallowed_keys)) {
        return; // 没有黑名单词，直接返回
    }

    $blackwords = array_filter(array_map('trim', explode("\n", $disallowed_keys)));
    if (empty($blackwords)) {
        return; // 没有有效黑名单词
    }

    $fields = $record->get_field([]);
    foreach ($fields as $field) {
        foreach ($blackwords as $blackword) {
            $regex = '|' . preg_quote($blackword, '|') . '|i';
            if (preg_match($regex, $field['value'])) {
                $ajax_handler->add_error($field['id'], esc_html__('This field contains a restricted word.', 'elementor-pro'));
                return;
            }
        }
    }
}, 10, 2);

unlimited elementor插件配合wooc产品

配合function函数，自定义选择显示feature精选产品

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function getFeaturedProductIDs($arg = '') {
    $args = array(
        'post_type'      => 'product',
        'post_status'    => 'publish',
        'posts_per_page' => -1,
        'tax_query'      => array(
            array(
                'taxonomy' => 'product_visibility',
                'field'    => 'slug',
                'terms'    => 'featured',
            ),
        ),
    );

    $query = new WP_Query($args);
    $product_ids = wp_list_pluck($query->posts, 'ID');

    // Convert integers to strings to match your example format
    $product_ids = array_map('strval', $product_ids);

    return $product_ids;
}