Fix for

Warning: Invalid argument supplied for foreach() in /var/www/html/pages/seo-meta-tag-search.page.php on line 204

As this is just a warning, i may not have noticed it originally, but as i have all warnings and errors shown now, it is appearing, probably trying to loop through something that is not declared or blank. 

https://kruxor.com/seo-meta-tag-search/ 

Fixed: This was due to looping through an array that was not set. 

PHP - Original Code

  foreach($kw_latest_json_array as $kw_item) {
    $kw_item_title = $kw_item['title'];
    $kw_page_url = $kw_item['page_url'];
    $kw_page_url_enc = urlencode($kw_page_url);
    $kw_group .= "<a href='?import_url=$kw_page_url_enc' class='list-group-item list-group-item-action' title='$kw_item_title'>$kw_item_title</a>";
  }

PHP - Check that the array isset

check if its an array, you could probably use isset here as well

if(is_array($kw_latest_json_array)) {
  foreach($kw_latest_json_array as $kw_item) {
    $kw_item_title = $kw_item['title'];
    $kw_page_url = $kw_item['page_url'];
    $kw_page_url_enc = urlencode($kw_page_url);
    $kw_group .= "<a href='?import_url=$kw_page_url_enc' class='list-group-item list-group-item-action' title='$kw_item_title'>$kw_item_title</a>";
  }
}