# Viewing PHP settings with the phpinfo() function

> Create a phpinfo() page to see your PHP version, enabled extensions and settings, then remove it for security.

Source: https://helpcenter.ruachost.com/developers/php/viewing-php-settings-with-the-phpinfo-function/

The `phpinfo()` function is a built‑in PHP command that outputs detailed information about the PHP environment. On **ruachost.com**, you can use this function to check PHP configuration settings, extensions, and server details.

## Why Use phpinfo()?

- Verify which PHP version your site is running.
- Check enabled extensions (e.g., MySQL, GD, cURL).
- Review configuration options such as memory limits, upload sizes, and timeouts.
- Troubleshoot compatibility issues with applications or frameworks.

## How to Use phpinfo()

### Step 1: Create a PHP File

1. Log in to your hosting account via FTP, SFTP, or File Manager.
2. Navigate to your site’s root directory (`public_html`).
3. Create a new file named `info.php`.

### Step 2: Add the phpinfo() Function

Insert the following code into the file:

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

### Step 3: Upload and Access the File

1. Save the file.
2. Visit the file in your browser:

   ```
   http://yourdomain.com/info.php
   ```
3. A page will display detailed PHP configuration information.

## Security Warning

- The `phpinfo()` output contains sensitive server details.
- Do **not** leave the file accessible on a public site.
- Delete or rename the file after testing.

## Example Output

When you run `phpinfo()`, you’ll see information such as:

- PHP version (e.g., 8.2.12)
- Loaded extensions (e.g., mysqli, gd, intl)
- Server API (e.g., Apache 2.0 Handler)
- Configuration directives (e.g., `memory_limit`, `upload_max_filesize`)