> For the complete documentation index, see [llms.txt](https://xoops.gitbook.io/xoops-install-upgrade/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://xoops.gitbook.io/xoops-install-upgrade/installation/preparations/phpinfo.md).

# phpinfo

This step is optional, but can easily save you hours of frustration.

As a pre-install test of the hosting system, a very small, but useful PHP script is created locally, and uploaded to the target system.

The PHP script is only one line:

```php
<?php phpinfo();
```

Using a text editor, create a file named *info.php* with this one line.

Next, upload this file to your web root.

![Filezilla info.php Upload](/files/-L_EkQFcuvQwiCaJ9n_A)

Access your script by opening it in your browser, i.e. accessing `http://example.com/info.php`. If everything is working correctly, you should see a page something like this:

![phpinfo() Example](/files/-L_EkQFekRIua_XTegx7)

Note: some hosting services may disable the *phpinfo()* function as a security measure. You usually will receive a message to that effect, if that is the case.

The output of the script might come in handy for troubleshooting, so consider saving a copy of it.

If the test works, you should be good to go for the install. You should delete the *info.php* script, and proceed with the install.

If the test fails, investigate why! Whatever issue is preventing this simple test from working **will** prevent a real install from working.