我正在使用自定义字段插件，我的代码必须自动填充它们，除2个字符串外，一切正常：

我获取字段的方式：

        foreach($postMeta as $key => $dataTmp) {
        if (strpos($key, \'field_\') !== false) {
            $fieldData = unserialize($dataTmp[0]);

            $fields[] = array(
                \'field\' => $key,
                \'name\' => $fieldData[\'name\']
            );
        }
    }

顺便说一下，我正在填充它们：

    foreach($fields as $name => $field){
            if($field[\'name\'] == \'local_players\' && !empty($local_players)){
                update_post_meta($postID, \'_\' . $field[\'name\'], $field[\'field\']);
                update_post_meta($postID, $field[\'name\'], $local_players);

            }elseif($field[\'name\'] == \'away_players\' && !empty($away_players)){
                update_post_meta($postID, \'_\' . $field[\'name\'], $field[\'field\']);
                update_post_meta($postID, $field[\'name\'], $away_players);

            }else{
                update_post_meta($postID, \'_\' . $field[\'name\'], $field[\'field\']);
                update_post_meta($postID, $field[\'name\'], $data[\'Match.\'.$field[\'name\']]);
            }

    }

有问题的字符串是：

update_post_meta($postID, $field[\'name\'], $local_players);
update_post_meta($postID, $field[\'name\'], $away_players);

它们用空的meta\\u值填充数据库，而不是$local\\u players和$away\\u players的值。我已经检查过几次了，它们不是空的。

例如，它们的值如下所示：

string(66) "84168|84171|11206|84174|102117|32083|84189|84186|84193|17787|84195"

空字段的原因可能是什么？

        foreach($fields as $name => $field){
            if($field[\'name\'] == \'local_players\'){
                if(!empty($local_players)){
                    update_post_meta($postID, \'_\' . $field[\'name\'], $field[\'field\']);
                    update_post_meta($postID, $field[\'name\'], $local_players);
                }

            }elseif($field[\'name\'] == \'away_players\'){
                if(!empty($away_players)){
                    update_post_meta($postID, \'_\' . $field[\'name\'], $field[\'field\']);
                    update_post_meta($postID, $field[\'name\'], $away_players);
                }

            }else{
                update_post_meta($postID, \'_\' . $field[\'name\'], $field[\'field\']);
                update_post_meta($postID, $field[\'name\'], $data[\'Match.\'.$field[\'name\']]);
            }

    }