Template Tags/get posts
Материал из WordPress Wiki
Содержание |
Description
This is a simple tag for creating multiple loops.
Usage
%%% <?php get_posts('arguments'); ?> %%%
Examples
Posts list with offset
If you have your blog configured to show just one post on the front page, but also want to list links to the previous five posts in category ID 1, you can use this:
<ul>
<?php
global $post;
$myposts = get_posts('numberposts=5&offset=1&category=1');
foreach($myposts as $post) :
?>
<li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
<?php endforeach; ?>
</ul>
Note: With use of the offset, the above query should be used only on a category that has more than one post in it, otherwise there'll be no output.
Access all post data
Some post-related data is not available to get_posts by default, such as post content through the_content(), or the numeric ID. This is resolved by calling an internal function setup_postdata(), with the $post array as its argument:
<?php
$lastposts = get_posts('numberposts=3');
foreach($lastposts as $post) :
setup_postdata($post);
?>
<h2><a href="<?php the_permalink(); ?>" id="post-<?php the_ID(); ?>"><?php the_title(); ?></a></h2>
<?php the_content(); ?>
<?php endforeach; ?>
To access a post's ID or content without calling setup_postdata(), or in fact any post-specific data (data retained in the posts table), you can use $post->COLUMN, where COLUMN is the table column name for the data. So $post->ID holds the ID, $post->post_content the content, and so on. To display or print this data on your page use the PHP echo command, like so:
<?php echo $post->ID; ?>
Latest posts ordered by title
To show the last ten posts sorted alphabetically in ascending order, the following will display their post date, title and excerpt:
<?php
$postslist = get_posts('numberposts=10&order=ASC&orderby=title');
foreach ($postslist as $post) :
setup_postdata($post);
?>
<div>
<?php the_date(); ?>
<br />
<?php the_title(); ?>
<?php the_excerpt(); ?>
</div>
<?php endforeach; ?>
Note: The orderby parameter was modified in Version 2.6. This code is using the new orderby format. See Parameters for details.
Random posts
Display a list of 5 posts selected randomly by using the MySQL RAND() function for the orderby parameter value:
<ul><li><h2>A random selection of my writing</h2>
<ul>
<?php
$rand_posts = get_posts('numberposts=5&orderby=rand');
foreach( $rand_posts as $post ) :
?>
<li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
<?php endforeach; ?>
</ul>
</li></ul>
Show all attachments
Do this outside any Loops in your template.
(Since Version 2.5, it may be easier to use get_children() instead.)
<?php
$args = array(
'post_type' => 'attachment',
'numberposts' => -1,
'post_status' => null,
'post_parent' => null, // any parent
);
$attachments = get_posts($args);
if ($attachments) {
foreach ($attachments as $post) {
setup_postdata($post);
the_title();
the_attachment_link($post->ID, false);
the_excerpt();
}
}
?>
Show attachments for the current post
Do this inside The_Loop (where $post->ID is available).
<?php
$args = array(
'post_type' => 'attachment',
'numberposts' => -1,
'post_status' => null,
'post_parent' => $post->ID
);
$attachments = get_posts($args);
if ($attachments) {
foreach ($attachments as $attachment) {
echo apply_filters('the_title', $attachment->post_title);
the_attachment_link($attachment->ID, false);
}
}
?>
Parameters: WordPress 2.6+
In addition to the parameters listed below under "WordPress 2.5 And Older", get_posts() can also take the parameters that query_posts() can since both functions now use the same database query code internally.
Note: Version 2.6 changed a number of the orderby options. Table fields that begin with post_ no longer have that part of the name. For example, post_title is now title and post_date is now date.
Parameters: WordPress 2.5 And Older
Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter Шаблон:Parameter