Get All WP Posts older than 15 minutes - php

Question

I would like to filter the WP_Query to retrive all woocommerce order (post_type = shop_order) with particular status that are older than 15 minutes.
I.e. All posts that have been last modified on or before (now - 15 minutes ) // Hope I'm clear.
Below What I've tried
function filter_where($where = '') {
//posts in the last 15 minutes
$where .= " AND post_modified > '" . date('Y-m-d', strtotime('INTERVAL 15 MINUTE')) . "'";
return $where;
}
add_filter('posts_where', 'filter_where');
$args = array(
'post_type' => 'shop_order',
'post_status' => 'publish',
'posts_per_page' => 10,
'tax_query' => array(
array(
'taxonomy' => 'shop_order_status',
'field' => 'slug',
'terms' => array('completed')
)
)
);
$loop = new WP_Query( $args );
while ( $loop->have_posts() ) : $loop->the_post();
$order_id = $loop->post->ID;
$order = new WC_Order($order_id);
print_r("<pre>");
print_r($order);
print_r("</pre>");
endwhile;
However that returns all record, Seems like have to modify the $where query, how can i achieve that ?

Answer 1

Do you need to filter the posts_where? Can't you just use date query parameters? In your case, specifically before.
$args = array(
'date_query' => array(
array(
'before' => '15 minutes ago'
'inclusive' => true,
),
),
'posts_per_page' => -1,
);
$query = new WP_Query( $args );
I can't test this right now, so can't verify if it would work. If you are modifying an archive then you should definitely adjust the query via pre_get_posts in lieu of creating new query.

Answer 2

try this change date('Y-m-d', strtotime('INTERVAL 15 MINUTE')) to date('Y-m-d H:i:s', strtotime('-15 minutes'))
function filter_where($where = ''){
//posts in the last 15 minutes
$where .= " AND post_modified > '" . date('Y-m-d H:i:s', strtotime('-15 minutes')) . "'";
return $where;
}
add_filter('posts_where', 'filter_where');