以编程方式将元键和元值添加到 wordpress 中的 post (woocommerce)

Question

我想在 wordpress post 中为 woocommerce 产品添加自定义元键和元值。我有这样的代码：

        global $wpdb;
$post_id = $wpdb->get_var( "SELECT ID FROM $wpdb->posts ORDER BY ID DESC LIMIT 1" );
add_post_meta($post_id, 'offers_for_woocommerce_enabled', 'yes’, true);
add_post_meta($post_id, 'woo_ua_product_condition', 'used', true);
add_post_meta($post_id, 'woo_ua_opening_price', 1, true);
add_post_meta($post_id, 'woo_ua_lowest_price', 2, true);

并且我收到了错误：解析错误：语法错误，意外 'woo_ua_product_condition' (T_STRING)，期待 ')' 在 ...

请帮忙

Answer 1

你在这一行有不同的引号add_post_meta($post_id, 'offers_for_woocommerce_enabled', 'yes’, true);

替换成这个

add_post_meta($post_id, 'offers_for_woocommerce_enabled', 'yes', true);

以编程方式将元键和元值添加到 wordpress 中的 post (woocommerce)

add meta key and meta value to post in wordpress programmatically (woocommerce)

php

wordpress

post-meta