array - Reversing the order of posts AFTER the query is performed

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I'm am displaying the last 5 posts of a custom post type 'show'.

This gives me the latest post first.

<?php
$args = array(
    'post_type' => 'show',
    'posts_per_page' => 5,
    'order' => 'DESC'
    );
$home_shows = new WP_Query($args);
var_dump($home_shows);
?>

What I need is to actually have the earliest (of the array of the latest shows) first, and the latest show (in that array of latest shows) last.

I am now currently getting (the show date via a custom field meta value):

3/11/12, 3/7/12, 3/4/12, 3/2/12, 2/30/12 etc.

I need: 2/30/12, 3/1/12, 3/4/12, 3/7/12, 3/11/12,

I tried using php's array_reverse like so (added to the above code):

$reversed_shows = array_reverse( $home_shows->posts );

Which gave me really odd results (displayed completely different parts of the post, array order was off).

Any ideas?

I'm am displaying the last 5 posts of a custom post type 'show'.

This gives me the latest post first.

<?php
$args = array(
    'post_type' => 'show',
    'posts_per_page' => 5,
    'order' => 'DESC'
    );
$home_shows = new WP_Query($args);
var_dump($home_shows);
?>

What I need is to actually have the earliest (of the array of the latest shows) first, and the latest show (in that array of latest shows) last.

I am now currently getting (the show date via a custom field meta value):

3/11/12, 3/7/12, 3/4/12, 3/2/12, 2/30/12 etc.

I need: 2/30/12, 3/1/12, 3/4/12, 3/7/12, 3/11/12,

I tried using php's array_reverse like so (added to the above code):

$reversed_shows = array_reverse( $home_shows->posts );

Which gave me really odd results (displayed completely different parts of the post, array order was off).

Any ideas?

• query
• array

Share Improve this question edited Apr 3, 2012 at 4:22 Squadrons asked Apr 3, 2012 at 3:59 SquadronsSquadrons 31922 gold badges44 silver badges1111 bronze badges

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4 Answers 4

Sorted by: Reset to default 8

I figured out what I was doing wrong. A simple beginners mistake.

Array_reverse was working properly, but I wasn't then reassigning the reversed array back to the $home_shows WP_Query, hence not seeing any change.

Here is the answer, and my revised code.

<?php
                    $args = array(
                        'post_type' => 'show',
                        'posts_per_page' => 5,
                        'order' => 'DESC',
                    );
                    $home_shows = new WP_Query($args);
                    //reverse the order of the posts, latest last
                    $array_rev = array_reverse($home_shows->posts);
                    //reassign the reversed posts array to the $home_shows object
                    $home_shows->posts = $array_rev;
                ?>
                <?php $captions = array(); ?>
                <?php if ( $home_shows->have_posts() ) : ?>         
                    <?php while ( $home_shows->have_posts() ) : $home_shows->the_post(); ?>

Thanks for the replies, glad I figured this one out.

Remove all the custom field mess and add an 'order' => 'ASC' to the args array! And you're done!

    <?php
    $args = array(
        'post_type' => 'show',
        'posts_per_page' => 5,
        'order' => 'desc'
        );
    $home_shows = new WP_Query($args);
 //   var_dump($home_shows);

echo "<pre>";
print_r($home_shows->posts);
echo "</pre>";



$array_rev = array_reverse($home_shows->posts);
echo "<pre>";
print_r($array_rev);
echo "</pre>";
  ?>

I tried above for my custom post type...

results post ids : 240,239,238,237 for reverse : 237,238,239,240

There must be something else in proble at your end......

If you need to reorder the main query I suggest to use the following hook:

add_action('the_posts',function($posts,$query){
    
    if( $query->is_main_query() ){
        
        usort($posts,function ($a, $b) {
            
            return strtotime($b->post_modified) - strtotime($a->post_modified);
        });
    }
    
    return $posts;
    
},10,2);

In this example I am reordering the posts by post_modified date but you can use another logic.

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