posts_per_page没有限制

-1是您的答案！在此处中查找posts_per_page.

 $args = array(
'post_type'      => 'post',
'cat'            => '22,47,67',
'orderby'        => 'name',
'order'          => 'ASC',
'hide_empty'     => 1,
'depth'          => 1,
'posts_per_page' => -1
);
 

重要警告:这可能会导致非常庞大的查询,从而使网站瘫痪.仅在确定数据库可以处理时才执行此操作.不在公共主题或插件中.

-1 is your answer! Look for posts_per_page here.

$args = array(
'post_type'      => 'post',
'cat'            => '22,47,67',
'orderby'        => 'name',
'order'          => 'ASC',
'hide_empty'     => 1,
'depth'          => 1,
'posts_per_page' => -1
);

Important caveat: This can result in a very huge query that can bring the site down. Do this only if you are sure your database can handle it. Not in public themes or plugins.

或者,您也可以传递 WP_Query (这是query_posts使用nopaging参数,该参数基本上具有相同的作用.

 $args = array(
    'nopaging' => true
    // Your other args, etc..
);
 

它的作用完全相同,但是如果您以后再回头看却不记得自己在做什么,我个人觉得对您来说更清楚了,您打算使用该参数是什么在args数组中.

但是,正如我提到的那样,他们实际上都会取得相同的成就.

拥有不止一种方法很无伤大雅,分享您所知道的东西总是很高兴的,足以说这就是我回答的原因,尽管您已经有足够的方法..;)

Or alternatively you can pass WP_Query(which is what query_posts uses) the nopaging argument, which basically does the same thing..

$args = array(
    'nopaging' => true
    // Your other args, etc..
);

It will do exactly the same, but if you have to look back at it later and can't remember what you were doing, i personally feel it will be more clear to you, what it is you were intending with that parameter inside the args array.

As i mentioned however, they'll both actually achieve the same.

Can't hurt to have more than one approach, and it's always nice to share what you know, suffice to say that's the reason for my answer, despite you already having a sufficient one.. ;)

来自您的儿童主题功能文件:

 add_action( 'pre_get_posts', 'wpsites_no_limit_posts' );

function wpsites_no_limit_posts( $query ) {

if( $query->is_main_query() && !is_admin() && is_home() ) {

$query->set( 'posts_per_page', '-1' );
$query->set( 'order', 'ASC' );
$query->set( 'post_type', 'post' );
$query->set( 'cat', '22,47,67' );
$query->set( 'orderby', 'name' );
$query->set( 'order', 'ASC' );
$query->set( 'hide_empty', '1' );
$query->set( 'depth', '1' );

    }

}
 

From your child themes functions file:

add_action( 'pre_get_posts', 'wpsites_no_limit_posts' );

function wpsites_no_limit_posts( $query ) {

if( $query->is_main_query() && !is_admin() && is_home() ) {

$query->set( 'posts_per_page', '-1' );
$query->set( 'order', 'ASC' );
$query->set( 'post_type', 'post' );
$query->set( 'cat', '22,47,67' );
$query->set( 'orderby', 'name' );
$query->set( 'order', 'ASC' );
$query->set( 'hide_empty', '1' );
$query->set( 'depth', '1' );

    }

}

使用里卡多(Ricardo)进行一些修改:

 static $paged;
$post_ids = [];
do {
    $paged++;
    $defaults = [
        'fields' => 'ids', // Only return the ID field to make this query faster.
        'post_type' => 'post',
        'posts_per_page' => 100,
        'no_found_rows' => false, // We need pagination & the count for all posts found.
        'paged' => $paged,
        'update_post_term_cache' => false,
        'update_post_meta_cache' => false,
    ];
    $query = new WP_Query($defaults);
    if ($query->have_posts()) {
        foreach ($query->posts as $id) {
            $post_ids[] = $id;
        }
    }
} while ($query->max_num_pages > $paged);

return $post_ids;
 

通过仅查询ID行并避免更新术语和元缓存,这将大大增加查询时间.

Using Ricardo's with some modification:

static $paged;
$post_ids = [];
do {
    $paged++;
    $defaults = [
        'fields' => 'ids', // Only return the ID field to make this query faster.
        'post_type' => 'post',
        'posts_per_page' => 100,
        'no_found_rows' => false, // We need pagination & the count for all posts found.
        'paged' => $paged,
        'update_post_term_cache' => false,
        'update_post_meta_cache' => false,
    ];
    $query = new WP_Query($defaults);
    if ($query->have_posts()) {
        foreach ($query->posts as $id) {
            $post_ids[] = $id;
        }
    }
} while ($query->max_num_pages > $paged);

return $post_ids;

This will dramatically increase the query time by only querying against the ID row and avoiding updating term and meta cache.

您问题的正确答案是'posts_per_page' => -1,因为-1每页将返回无限制的帖子,就像其他用户回答一样.

我只想在此问答中添加一个附件,

如果要从WordPress管理面板上的阅读设置中获取每页的帖子数,则必须调用get_option()函数并将posts_per_page作为字符串.

 $args = array(
    'post_type'      => 'post',
    'cat'            => '22,47,67',
    'orderby'        => 'name',
    'order'          => 'ASC',
    'hide_empty'     => 1,
    'depth'          => 1,
    'posts_per_page' => get_option('posts_per_page')
    );
 

我希望这个答案能对我有所帮助.快乐的编码Stackexchange用户

The right answer for your issue is 'posts_per_page' => -1 because -1 will return unlimited posts per page As the others users answer.

I just want to add an add-on to this Q/A,

If you want to get the number of posts per page from the reading setting on WordPress Administration Panel you have to call the get_option() function and pass posts_per_page as a string to it.

$args = array(
    'post_type'      => 'post',
    'cat'            => '22,47,67',
    'orderby'        => 'name',
    'order'          => 'ASC',
    'hide_empty'     => 1,
    'depth'          => 1,
    'posts_per_page' => get_option('posts_per_page')
    );

I hope this answer will help someone as it help me. Happy Coding Stackexchange Users

或..

 function getAll($arg, $posts_per_page = 50)
{
    $data = array();
    $page = 1;

    do{
        $arg['paged'] = $page;
        $arg['posts_per_page'] = $posts_per_page;

        $query = new WP_Query($arg);

        foreach ($query->posts as $post){
            $data[] = $post;
        }

        $page++;

    }while(count($query->posts) === $posts_per_page);

    return $data;
}
 

Or..

function getAll($arg, $posts_per_page = 50)
{
    $data = array();
    $page = 1;

    do{
        $arg['paged'] = $page;
        $arg['posts_per_page'] = $posts_per_page;

        $query = new WP_Query($arg);

        foreach ($query->posts as $post){
            $data[] = $post;
        }

        $page++;

    }while(count($query->posts) === $posts_per_page);

    return $data;
}