Exclude links from preg_match_all/foreach that are commented out - php

Question

I have a function in wordpress which finds links and changes them.
//FINDS ALL IMAGE LINKS
preg_match_all('/\S*\bwww\.tradingview\.com\S*/', $data['post_content'], $matches);
//FOR EACH IMAGE LINK IN THE CONTENT...
foreach( $matches[0] as $imgURL ):
I'm trying to make it so that it ignores any link that is commented out like this:
<!-- https://www.tradingview.com -->
I'm not sure how to accomplish this. I'm very new to web dev so apologies if I've left anything out.
Edit: I made a typo and added the ! in the first part of the comment
Edit: Here's the rest of my code, including the print statement.
function customPostSave($data , $postarr) {
// INCLUDES REQUIRED WP FILES
require_once(ABSPATH . 'wp-admin/includes/file.php');
require_once(ABSPATH . 'wp-admin/includes/media.php');
require_once(ABSPATH . 'wp-admin/includes/image.php');
//FINDS ALL IMAGE LINKS
preg_match_all('/\S*\bwww\.tradingview\.com\S*/', $data['post_content'], $matches);
echo '<pre>', print_r($matches[0]), '</pre>';
//FOR EACH IMAGE LINK IN THE CONTENT...
foreach( $matches[0] as $imgURL ):
// REMOVES ALL SPACES AROUND THE URL
$imgURL = trim($imgURL);
// STORE ORIGINAL URL
$imgURLoriginal = $imgURL;
// PREPARES FILE INFORMATIONS
$file_array = array();
$file_array['name'] = basename($imgURL);
if( !preg_match('/(\.png)$/i', $imgURL) ) $file_array['name'] .= '.png';
$file_array['tmp_name'] = download_url($imgURL);
// DOWNLOADS THE IMAGE AND UPLOADS IT LOCALLY
$id = media_handle_sideload($file_array, $postarr['post_ID']);
$localURL = wp_get_attachment_url($id);
// GRABS THE POST TAGS
$tags = wp_get_object_terms($postarr['post_ID'], 'post_tag');
$imgTags = array();
if( !empty($tags) ):
foreach( $tags as $tag ):
array_push($imgTags, $tag->name);
endforeach;
endif;
// REPLACES THE IMAGE URL IN THE CONTENT, WITH <IMG> TAGS WITH SPECIFIC STYLES
$data['post_content'] = str_replace(
$imgURL,
'<!-- '.$imgURLoriginal.' -->
<p style="text-align:center"><img src="' . $localURL . '" alt="' . implode($imgTags, ', ') . '" style="width:100%;"></p>',
$data['post_content']
);
endforeach;
return $data;
} add_filter('wp_insert_post_data' , 'customPostSave' , '99', 2);

Answer 1

It is hard to provide you with a good answer due to lack of infomation. You should update your question with output from echo '<pre>', print_r($matches[0]), '</pre>'; so we know what data you are working with.
If all start with "<--", you can do it like this:
foreach($matches[0] as $imgURL) {
if(substr($imgURL, 0, 3) !== "<--") {
echo $imgURL;
}
}