如何从wp_query结果中获取发布数据数组？

Question

如何从wp_query结果中获取发布数据数组？

- 42
- 144423 2012-08-11
当使用WP_Query方法运行查询时,我得到了一个对象.我知道可以执行循环以显示内容.但是,我的目标不是显示任何内容,而是要通过执行诸如"foreach ..."之类的操作来获取一些发布数据.我如何获取可以循环访问并获取数据的一系列帖子数据?

When run a query with WP_Query method, I got an object. I understand that I can then do the loop to display stuffs. But, my goal is not to display anything, instead, I want to get some post data by doing something like "foreach...". How can I get an array of post data that I can loop through and get data?

wp-query
- 原文
- Jenny

- 直接访问发布数据与使用模板标签之间要记住的一个重要区别是,过滤器未应用于数据,某些功能可能会中断.
  
  An important difference to keep in mind between accessing post data directly versus using template tags is that filters are not applied to the data and some functionality may break.
  - 2
  - 2016-12-30
  - Milo

3 个回答

投票数


                                                    
                                                        
                                                            

                                                                
                                                                    
                                                                        
                                                                            
                                                                            
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                                                                            2015-10-01
                                                                        
                                                                    
                                                                    
                                                                        实际上,您不需要拒绝使用while()循环.相同的WP_Post对象已经存储在post属性中:

         $query = new WP_Query( $args );

        if ( $query->have_posts() ) {

            while ( $query->have_posts() ) {

                $query->the_post();

                // now $query->post is WP_Post Object, use:
                // $query->post->ID, $query->post->post_title, etc.

            }

        }
 
                                                                        Actually, you don't need to refuse to use while() loop. Same WP_Post Object is already stored in post property:

        $query = new WP_Query( $args );

        if ( $query->have_posts() ) {

            while ( $query->have_posts() ) {

                $query->the_post();

                // now $query->post is WP_Post Object, use:
                // $query->post->ID, $query->post->post_title, etc.

            }

        }


                                                                        
                                                                        
                                                                        
                                                                        
                                                                            
                                                                                
                                                                                    
                                                                                    原文
                                                                                
                                                                            
                                                                            
                                                                                
                                                                                    
                                                                                    vladkras
                                                                                
                                                                            
                                                                            
                                                                                
                                                                                    
                                                                                        
                                                                                    
                                                                                    
                                                                                        
                                                                                    
                                                                                    
                                                                                        
                                                                                    
                                                                                    
                                                                                        
                                                                                    
                                                                                    
                                                                                        
                                                                                    
                                                                                    
                                                                                        
                                                                                    
                                                                                
                                                                            
                                                                            
                                                                        
                                                                    
                                                                    
                                                                
                                                            
                                                            
                                                                
                                                                    
                                                                        
                                                                            
                                                                                
                                                                                    如果是多余的.
                                                                                    `if` is redundant.
                                                                                    
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                                    
                                                                                        
                                                                                    
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                                                                                    2017-01-26
                                                                                    
                                                                                        
                                                                                            
                                                                                            Akkumulator
                                                                                        
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                            
                                                                        
                                                                    
                                                                
                                                                    
                                                                        
                                                                            
                                                                                
                                                                                    不,`if`不是多余的.在这种情况下,确实是这样,但是在大多数生产情况下,您需要在if和while之间执行代码.
                                                                                    No, `if` is not redundant. In this exact case it is, but in most production situations, you have code to execute between the if and the while.
                                                                                    
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                                    
                                                                                        
                                                                                    
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                                                                                    2017-03-27
                                                                                    
                                                                                        
                                                                                            
                                                                                            magi182
                                                                                        
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                            
                                                                        
                                                                    
                                                                
                                                                    
                                                                        
                                                                            
                                                                                
                                                                                    @magi182在这种情况下,它变得多余.人们应该学习何时使用它.
                                                                                    @magi182 Which makes it redundant, in this exact case. People should learn when to use this.
                                                                                    
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                                    
                                                                                        
                                                                                    
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                                                                                    2017-04-03
                                                                                    
                                                                                        
                                                                                            
                                                                                            frodeborli
                                                                                        
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                            
                                                                        
                                                                    
                                                                
                                                                    
                                                                        
                                                                            
                                                                                
                                                                                    @frodeborli,关于以"人们应该"开头的语句的好处是,您几乎总是可以替换为"人们不会",并且该语句仍然测试为真.
                                                                                    @frodeborli, The nice thing about statements that start with "people should" is that you can almost always substitute "people won't" and the statement still tests as true.
                                                                                    
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                                    
                                                                                        
                                                                                    
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                                                                                    2017-04-06
                                                                                    
                                                                                        
                                                                                            
                                                                                            magi182
                                                                                        
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                            
                                                                        
                                                                    
                                                                
                                                                    
                                                                        
                                                                            
                                                                                
                                                                                    @magi182我可能会让一百行代码行补充上面的代码.
                                                                                    @magi182 I could probably make a hundred nice to have code lines to complement the above code.
                                                                                    
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                                    
                                                                                        
                                                                                    
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                                                                                    2017-04-08
                                                                                    
                                                                                        
                                                                                            
                                                                                            frodeborli
                                                                                        
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                            
                                                                        
                                                                    
                                                                
                                                                    
                                                                        
                                                                            
                                                                                
                                                                                    这应该是选择的答案
                                                                                    this should be the chosen answer
                                                                                    
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                                    
                                                                                        
                                                                                    
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                                                                                    2018-10-27
                                                                                    
                                                                                        
                                                                                            
                                                                                            bysanchy
                                                                                        
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                            
                                                                        
                                                                    
                                                                
                                                            
                                                        
                                                    
                                                        
                                                            

                                                                
                                                                    
                                                                        
                                                                            
                                                                            
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                                                                            2019-04-16
                                                                        
                                                                    
                                                                    
                                                                        您还可以使用get_posts( $args )代替wp_Query(),这将为您提供帖子列表
                                                                        you can also use get_posts( $args ) instead of wp_Query(), which will give you a list of posts

                                                                        
                                                                        
                                                                        
                                                                        
                                                                            
                                                                                
                                                                                    
                                                                                    原文
                                                                                
                                                                            
                                                                            
                                                                                
                                                                                    
                                                                                    Alon Gouldman

rofflox · Accepted Answer · 2012-08-11

80

2012-08-11

您应该阅读WordPress法典上的 WP_Query的功能参考.那里有很多示例可供参考.如果您不想使用 while 遍历结果集,则可以在属性posts <中使用 WP_Query 获取查询返回的所有帖子./code>.



 例如 

  $ query=new WP_Query(array('post_type'=＆gt;'page'));
$posts=$ query-＆gt;posts;

foreach($posts as $post){
//做你的事情,例如
//echo $post-＆gt;post_name;
}


                                                                        You should read the function reference for WP_Query on the WordPress codex. There you have a lot of examples to look at. If you don't want to loop over the result set using a while, you could get all posts returned by the query with the WP_Query in the property posts.

For example

$query = new WP_Query( array( 'post_type' => 'page' ) );
$posts = $query->posts;

foreach($posts as $post) {
    // Do your stuff, e.g.
    // echo $post->post_name;
}


                                                                        
                                                                        
                                                                        
                                                                        
                                                                            
                                                                                
                                                                                    
                                                                                    原文
                                                                                
                                                                            
                                                                            
                                                                                
                                                                                    
                                                                                    rofflox


                                                            
                                                                
                                                                    
                                                                        
                                                                            
                                                                                
                                                                                    但是,您链接到的所有示例都没有演示如何处理帖子.因此,很高兴您回答了,很遗憾他们没有在文档中提供它.另一个提示:如果您要对一个唯一的帖子进行匹配,则可以在args中使用带有类似''posts_per_page'=> 1'的函数.`function wp_queryfirstpost($ args){
 $ q=新的WP_Query($ args);
 $pp=$ q->get_posts();
 $firstpost=false;如果($pp)$firstpost=$pp [0];
 wp_reset_postdata();
 返回$firstpost;
}`
                                                                                    None of the examples you link to demonstrates how to process posts, though. So it's good that you answered, pity they don't have it in the documentation. Another tip: If you're doing a match on a unique post you can use a function like this with `'posts_per_page'=>1` in args. `function wp_queryfirstpost($args) {
 $q=new WP_Query($args);
 $pp=$q->get_posts();
 $firstpost=false;if ($pp) $firstpost=$pp[0];
 wp_reset_postdata();
 return $firstpost;
}`
                                                                                    
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                                    
                                                                                        
                                                                                    
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                                                                                    2014-03-21
                                                                                    
                                                                                        
                                                                                            
                                                                                            Henrik Erlandsson
                                                                                        
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                            
                                                                        
                                                                    
                                                                
                                                                    
                                                                        
                                                                            
                                                                                
                                                                                    @rofflox:你是圣人！非常适合绕开get_the_title/ID/younameit.
                                                                                    @rofflox: You are a saint! Great for circumventing get_the_title/ID/younameit.
                                                                                    
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                                    
                                                                                        
                                                                                    
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                                                                                    2015-04-30
                                                                                    
                                                                                        
                                                                                            
                                                                                            Vial
                                                                                        
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                            
                                                                        
                                                                    
                                                                
                                                                    
                                                                        
                                                                            
                                                                                
                                                                                    您应该使用$ query->posts来代替,$ query->get_posts()将触发查询解析的重新运行以及其他不必要的数据库查询
                                                                                    You should use `$query->posts` instead, `$query->get_posts()` will trigger a re-running of the query parsing and additional unnecessary database queries
                                                                                    
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                                    
                                                                                        
                                                                                    
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                                                                                    2015-11-01
                                                                                    
                                                                                        
                                                                                            
                                                                                            Tom J Nowell
                                                                                        
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                            
                                                                        
                                                                    
                                                                
                                                                    
                                                                        
                                                                            
                                                                                
                                                                                    $ query->get_posts();不能按预期工作.不知道为什么,但是返回的帖子少于查询.参见此处:https://stackoverflow.com/questions/25395299/how-do-i-get-wordpress-wp-query-get-posts-on-multiple-categories-to-work
                                                                                    $query->get_posts(); is not working as expected. Not sure why but it returns fewer post than the query. See here: https://stackoverflow.com/questions/25395299/how-do-i-get-wordpress-wp-query-get-posts-on-multiple-categories-to-work
                                                                                    
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                                    
                                                                                        
                                                                                    
                                                                                    0
                                                                                    2016-11-12
                                                                                    
                                                                                        
                                                                                            
                                                                                            Laxmana
                                                                                        
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                            
                                                                        
                                                                    
                                                                
                                                                    
                                                                        
                                                                            
                                                                                
                                                                                    这个答案是完全错误的,当您使用一些参数创建一个新的WP_Query时,将立即在内部调用get_posts()方法,并且您不应再次调用它！如果如上例所示再次调用它,它将运行一个DIFFERENT查询,具体取决于初始运行的参数和结果(设置内部标志等),并可能返回其他(较小)的结果集或根本没有结果.正如TomJNowell和Laxmana所建议的那样,应使用$ query->posts获取帖子数据.
                                                                                    This answer is plain wrong, when you create a new WP_Query with some arguments the method get_posts() is internally called right away and you SHOULD NOT CALL IT AGAIN! If you call it again as shown in the example above it will run a DIFFERENT query, depending on the arguments and results form the initial run (internal flags set, etc..), and can potentially return a different (smaller) set of results or no results at all. As TomJNowell and Laxmana suggested above one should use $query->posts to get the post data.
                                                                                    
                                                                                    
                                                                                    
                                                                                
                                                                                
                                                                                    
                                                                                        
                                                                                    
                                                                                    1
                                                                                    2016-12-04
                                                                                    
                                                                                        
                                                                                            
                                                                                            ivanhoe