Wordpress get_posts() fetch next batch of posts - php

Question

I'm using the get_posts() function to fetch a batch of posts from a custom post type, sorted by ID, modify those posts and then fetch the next batch.
I have the following code:
<?php
require_once('wp-load.php');
$temp_list_of_products_array = get_posts( array('post_type' => 'sale', 'numberposts' => 10 ) );
$temp_list_of_products_array_length = count( $temp_list_of_products_array );
for ($xt = 0; $xt < $temp_list_of_products_array_length; $xt++) {
$temp_product_id = $temp_list_of_products_array[$xt]->ID;
$temp_product_untranslated_field = get_post_meta($temp_product_id, 'wpcf-product-details', true);
$temp_product_translated_field = get_post_meta($temp_product_id, 'wpcf-translated-product-details', true);
$temp_product_description_language = 'en';
if ($temp_product_translated_field == null) {
$temp_product_translated_contents = google_translate_text($temp_product_untranslated_field, $temp_product_description_language);
update_post_meta($temp_product_id, 'wpcf-translated-product-details', $temp_product_translated_contents);
}
echo $temp_product_id;
}
?>
This works great but the problem is that it only loads the first 10 posts ordered by date.
My question is, how do I get the next batch of 10 posts without have a user activated pagination call?
Thanks

Answer 1

first get the current page
$paged=($query_vars['paged']!=0 ? $query_vars['paged'] : 1);
now calculate the offset value
$numberposts=10;
$ofdset=$numberposts* ($paged - 1) ;
add your code
$temp_list_of_products_array = get_posts( array('post_type' => 'sale', 'numberposts' => 10 ,'offset'=>$offset) );
$temp_list_of_products_array_length = count( $temp_list_of_products_array );
for ($xt = 0; $xt < $temp_list_of_products_array_length; $xt++) {
$temp_product_id = $temp_list_of_products_array[$xt]->ID;
$temp_product_untranslated_field = get_post_meta($temp_product_id, 'wpcf-product-details', true);
$temp_product_translated_field = get_post_meta($temp_product_id, 'wpcf-translated-product-details', true);
$temp_product_description_language = 'en';
if ($temp_product_translated_field == null) {
$temp_product_translated_contents = google_translate_text($temp_product_untranslated_field, $temp_product_description_language);
update_post_meta($temp_product_id, 'wpcf-translated-product-details', $temp_product_translated_contents);
}
echo $temp_product_id;
}
add pagination code at bottom of loop
check this for wordpress pagination with get_posts function
https://wordpress.stackexchange.com/questions/137100/using-pagination-with-get-posts-on-page-type

Answer 2

You can simply use the paged parameter:
$current_page = 1; // <-- Modify this to your needs!
$temp_list_of_products_array = get_posts(
array(
'paged' => $current_page,
'post_type' => 'sale',
'posts_per_page' => 10
)
);
for paging.