How to setup a cron job command to execute an URL?

```
/usr/bin/wget -q http://www.domain.com/cron_jobs/job1.php >/dev/null 2>&1

```

Why can't I make this work!? Have tried everything.. The PHP script should send an email and create some files, but none is done

The command returns this:

```
Output from command /usr/bin/wget -q http://www.domain.com/cron_jobs/job1.php ..

No output generated

```

... but it still creates an empty file in `/root` on each execute!? Why?