How to print wordpress post? - php

Question

As we know, to display posts on wordpress we must use a loop. But in general, the loop used to display posts on wordpress is as follows
$query = new WP_Query( $args );
$query = $query->get_posts();
foreach ($query as $post) :
the_post();
endforeach;
the question is, how do I get $post[$i] so that the results I will get are as follows.
<!-- i want to print wordpress post like this format-->
<div class='grid'>
<div class='column'>
<!-- $i = 0 -->
<!-- start loop -->
<!-- print post -->
<span><?php echo $post[$i]->title; ?></span>
<!-- $i = $i + 3 -->
<!-- end loop -->
</div>
</div>
the concept is I want to display the first post based on the value of $i, then the next post based on the value of $i = $i + 3, so the final result will print $post[0], $post[3], $post[6], [...] , any suggestions?
sorry for my english, Thanks - Edwin.

Answer 1

This should be the solution to display your posts:
<?php
$posts = new WP_Query( $args );
if( $posts->have_posts() ) : //checks if query have posts
while( $posts->have_posts() ) : $posts->the_post();
if( $i % 3 == 0 ) : //every third post ?>
<div class='grid'>
<div class='column-<?php the_ID(); ?>'>
<span>the_title();</span>
</div>
</div>
<?php endif;
$i++;
endwhile;
else :
// if no posts
endif;
wp_reset_postdata();
?>

Answer 2

i got this answer from other question and other forum
$query = new WP_Query( array( 'post_type' => 'page' ) );
$posts = $query->posts;
foreach($posts as $post) {
// Do your stuff, e.g.
// echo $post->post_name;
}
and i make some change from the code to get my result
$query = new WP_Query();
$posts = $query->posts;
$i = 0;
foreach($posts as $post) {
// Do your stuff, e.g.
// echo $post[$i]->post_name;
$i = $i + 3;
}