有很多代碼中的錯誤和失誤。我深深重新審視你的代碼，使它更亮：

// Add a custom setting tab to Woocommerce > Settings section

add_action( 'woocommerce_settings_tabs', 'wc_settings_tabs_customer_list_tab' );

function wc_settings_tabs_customer_list_tab() {

$current_tab = ( isset($_GET['tab']) && $_GET['tab'] === 'customer_list' ) ? 'nav-tab-active' : '';

echo ''.__( "Customer List", "woocommerce" ).'';

}

// The setting tab content

add_action( 'woocommerce_settings_customer_list', 'display_customer_list_tab_content' );

function display_customer_list_tab_content() {

global $wpdb;

// Styling the table a bit

echo '';

$table_display = '

// Loop through customers

foreach ( get_users( 'orderby=nicename&role=customer' ) as $key => $customer ) {

// Customer total purchased

$total_purchased = (float) $wpdb->get_var( "

SELECT SUM(pm.meta_value) FROM {$wpdb->prefix}postmeta as pm

INNER JOIN {$wpdb->prefix}posts as p ON pm.post_id = p.ID

INNER JOIN {$wpdb->prefix}postmeta as pm2 ON pm.post_id = pm2.post_id

WHERE p.post_status = 'wc-completed' AND p.post_type = 'shop_order'

AND pm.meta_key = '_order_total' AND pm2.meta_key = '_customer_user'

AND pm2.meta_value = {$customer->ID}

" );

// Customer orders count

$orders_count = (int) $wpdb->get_var( "

SELECT DISTINCT COUNT(p.ID) FROM {$wpdb->prefix}posts as p

INNER JOIN {$wpdb->prefix}postmeta as pm ON p.ID = pm.post_id

WHERE p.post_type = 'shop_order' AND pm.meta_key = '_customer_user'

AND pm.meta_value = {$customer->ID}

" );

// Customer last order ID

$last_order_id = (int) $wpdb->get_var( "

SELECT MAX(p.ID) FROM {$wpdb->prefix}posts as p

INNER JOIN {$wpdb->prefix}postmeta as pm ON p.ID = pm.post_id

WHERE p.post_type = 'shop_order' AND pm.meta_key = '_customer_user'

AND pm.meta_value = {$customer->ID}

" );

$user_link = 'user-edit.php?user_id=' . $customer->ID;

$last_order_link = 'post.php?post='.$last_order_id.'&action=edit';

$table_display .= '

' . esc_attr( $customer->ID ) .'' . esc_html( $customer->first_name ) .'' . esc_html( $customer->last_name ) .'' . esc_html( $customer->billing_address_1 ) .'' . esc_attr( $customer->billing_postcode ) .'' . esc_attr( $customer->billing_city ) .'' . esc_attr( $customer->billing_phone ) .'' . esc_attr( $customer->billing_email ) .''. ( $total_purchased > 0 ? wc_price( $total_purchased ) : ' - ' ) . ''. $orders_count . '' . ( $last_order_id > 0 ? $last_order_id : ' - ' ) . '';

}

// Output the table

echo $table_display . '

';

}

代碼放在您的活動子主題的function.php文件(或活動主題)。測試和工程。

注意：當你將擁有更多的客戶，你的方法將是太重(太多的查詢和數據顯示)......所以，你應該需要做，包括WP_User_Query在多個子頁面拆分數據pagination。

總結

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