wp query - Loop through all product posts?

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I want to loop through all my posts who are called 'products'. For that I use this one:

$products_IDs = new WP_Query( array(
        'post_type' => 'product'
    ));

while ($products_IDs->have_posts() ) : $products_IDs->the_post();
        $y = $y + 1; 
        $myfile = fopen("wp_all_import.txt", "a");
        fwrite($myfile, "Counter: " . $y . "\t");
        fclose($myfile);

        //some code...

        $sql = "INSERT INTO `wp_all_import` (pid, price, price_old, link, shop) VALUES ('$pid', '$price', '$price_old', '$link', '$shop')";
        if($database->query($sql) === TRUE){
            $myfile = fopen("wp_all_import.txt", "a");
            fwrite($myfile, "Inserted: " . $pid . " \n");
            fclose($myfile);
        }

But I always get only 10 loops nevertheless I have more then 10 product pages... More over 100... But the loop always is stopping at 10... look .txt

I don't know why... But how can I fix that or how can I find out why the loop is always stopping at 10?

Greetings and Thank You!

I want to loop through all my posts who are called 'products'. For that I use this one:

$products_IDs = new WP_Query( array(
        'post_type' => 'product'
    ));

while ($products_IDs->have_posts() ) : $products_IDs->the_post();
        $y = $y + 1; 
        $myfile = fopen("wp_all_import.txt", "a");
        fwrite($myfile, "Counter: " . $y . "\t");
        fclose($myfile);

        //some code...

        $sql = "INSERT INTO `wp_all_import` (pid, price, price_old, link, shop) VALUES ('$pid', '$price', '$price_old', '$link', '$shop')";
        if($database->query($sql) === TRUE){
            $myfile = fopen("wp_all_import.txt", "a");
            fwrite($myfile, "Inserted: " . $pid . " \n");
            fclose($myfile);
        }

But I always get only 10 loops nevertheless I have more then 10 product pages... More over 100... But the loop always is stopping at 10... look https://gamekeys-shop.de/wp-admin/wp_all_import.txt

I don't know why... But how can I fix that or how can I find out why the loop is always stopping at 10?

Greetings and Thank You!

• posts
• wp-query
• loop

Share Improve this question asked Mar 1, 2017 at 21:33 JanJan 30733 silver badges88 bronze badges 2

• 1 Set WP_Query parameter posts_per_page to -1. – Nicolai Grossherr Commented Mar 1, 2017 at 21:40
• What does that mean and how do I do that? - And where? – Jan Commented Mar 1, 2017 at 21:41

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1 Answer 1

Sorted by: Reset to default 2

Take a look at WordPress codex for WP_Query for more information.

You'll see there are different parameters for WP_Query, you just need to add the posts_per_page parameter with the value set to -1 to show all posts.

$products_IDs = new WP_Query( array(
        'post_type' => 'product',
        'posts_per_page' => -1,
    ));

while ($products_IDs->have_posts() ) : $products_IDs->the_post();
    // Your code
endwhile;

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