如果 foreach 返回为空，则显示消息

用户18294188

所以我似乎无法弄清楚这个逻辑，所以我想看看是否有人可以帮助我。

所以我有以下内容foreach：

echo "Page: " . $page_placement . "/" . $total_pages . "\n\n";
foreach ($posts as $post) {
    $current_post_id = post_exists(
        $post->title->rendered,
        '',
        '',
        '',
        ''
    );
    if ($current_post_id === 0) {
        $my_post = [
            'post_type'     => 'post',
            'post_status'   => 'pending',
            'post_title'    => wp_strip_all_tags($post->title->rendered),
            'post_content'  => wp_strip_all_tags($post->content->rendered),
            'post_excerpt'  => wp_strip_all_tags($post->excerpt->rendered),
            'post_author'   => 1,
            'post_date'     => $post->date,
        ];

        // Insert post.
        $post_id = wp_insert_post($my_post);
        wp_set_object_terms($post_id, 'Global', 'category');
        wp_set_object_terms($post_id, 'Global', 'post_tag');
        echo "ID: " . $post->id . " - Title: " . $post->title->rendered . " has been imported.\n";
    }
}

它抓取 50$posts然后循环并调用post_exists()以检查帖子的标题，如果它不存在，它将导入该帖子，否则它将跳过它。

如果未导入所有 50 个帖子，如何显示回显消息？

我无法if (!$current_post_id) {在 foreach 内部调用，因为它会显示 50 次消息，我尝试在外部播放变量foreach然后调用$my_post[] = [ .... ]，但随后wp_import_post不起作用。

肯·李

只需使用一个变量（例如$imported，初始值=0）来检查计数。如果导入，则递增它。

所以最后如果变量还是0，调用echo语句

因此：

<?php
echo "Page: " . $page_placement . "/" . $total_pages . "\n\n";

$imported=0;

foreach ($posts as $post) {


    $current_post_id = post_exists(
        $post->title->rendered,
        '',
        '',
        '',
        ''
    );
    if ($current_post_id === 0) {
        $my_post = [
            'post_type'     => 'post',
            'post_status'   => 'pending',
            'post_title'    => wp_strip_all_tags($post->title->rendered),
            'post_content'  => wp_strip_all_tags($post->content->rendered),
            'post_excerpt'  => wp_strip_all_tags($post->excerpt->rendered),
            'post_author'   => 1,
            'post_date'     => $post->date,
        ];

        // Insert post.
        $post_id = wp_insert_post($my_post);
        wp_set_object_terms($post_id, 'Global', 'category');
        wp_set_object_terms($post_id, 'Global', 'post_tag');
        echo "ID: " . $post->id . " - Title: " . $post->title->rendered . " has been imported.\n";
        $imported++;
    }

}

if ($imported==0){
echo "No record imported";
}

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