php cURL script run twice when printing return string

Question

I have the following script. In the remote php script a record is added to a database table. When I leave the last line (print $html;) in this script, 2 records are added!

Answer 1

Set CURLOPT_RETURNTRANSFER to false and just do curl_exec($ch) instead of $html = curl_exec($ch). Then the curl output will be directly returned to the browser.