How to get the next $args when if:false? - php

Question

I am new in programming... (The question absolutely about programming, but I use wordpress) I try to be very clear:
I have a subdomain based multisite network. If the users posts to their sites, I get a clone from the current post to my network home. This clone have a canonical url, what shows to the original post, and the post slug's also concur (the ID's dont.)
example: x user posted:
url: xusersite.network.com/4243345/this-is-slug-by-post-title
canonical: xusersite.network.com/4243345/this-is-slug-by-post-title
I get:
url: network.com/123677745/this-is-slug-by-post-title
canonical: xusersite.network.com/4243345/this-is-slug-by-post-title
Now I want get the clone post's ID, on the subsite, by the original post... so I have this code:
switch_to_blog( 1 );
$canonical = 'xusersite.network.com/4243345/this-is-slug-by-post-title';
$slug = 'this-is-slug-by-post-title'; // current slug
$args = array(
'name' => $slug,
'post_type' => 'post',
'post_status' => 'publish',
'numberposts' => 1
);
$my_posts = get_posts($args);
Thats ok, but the problem, if an another user posted with the same title for his blog, example: y user posted:
url: yusersite.network.com/72543/this-is-slug-by-post-title
canonical: yusersite.network.com/72543/this-is-slug-by-post-title
I get a post, with the same slug:
url: network.com/776536556733/this-is-slug-by-post-title
canonical: yusersite.network.com/72543/this-is-slug-by-post-title
So my php knowledge now here it is, I can do this:
if( $my_posts ) :
$cloneid = $my_posts[0]->ID;
$clonecanonical = wp_get_canonical_url( $cloneid );
if( $clonecanonical == $canonical ) :
$exit = 'true';
else :
$exit = 'false';
endif;
endif;
How can I get the next $my_posts, so $my_posts[1]->ID, if the $exit is false? How can I get the right $my_posts?

Answer 1

Not sure to have understood, but you should get the numeer of posts in my posts using count($my_posts) and then use a for or while to iterate through the full $my_posts.
something like this:
if( $my_posts ) :
$numPosts=count($my_posts)
//if $numPosts = 0 then $my_posts[0] does not exist
//but if you are here $numPosts must be > 0
if $numPosts > 0 {
for ( $i = 0; $i < $numPosts; $i++ ){
$cloneid = $my_posts[$i]->ID;
$clonecanonical = wp_get_canonical_url( $cloneid );
if( $clonecanonical == $canonical ) :
$exit = $my_posts[$i]->ID;
endif;
}
}
endif;