Why is it impossible to execute a script in which there are http requests via cron?

Question

PHP

<?php
$a=file_get_contents(' ffffffffff.com ');
?>
if called through a browser, then everything works, and if through cron, an error message will be sent to the soap

Answer 1

The first rule of a thinking programmer: if something does not work, then read the logs

Answer 2

see access rights .. because it's not a fact that the script is being executed from the right user!