What are the differences between manual and PEAR installation methods for PHPDocumentor?

The main difference between manual and PEAR installation methods for PHPDocumentor is the way in which the tool is installed and managed. Manual installation involves downloading the PHPDocumentor package from the official website and setting it up manually, while PEAR installation allows for easier management and updates through the PHP Extension and Application Repository (PEAR) package manager. To install PHPDocumentor manually, you can download the latest version from the official website and extract the files to a directory on your server. Then, you can run the PHPDocumentor script from the command line to generate documentation for your PHP code.

```php
// Manual installation of PHPDocumentor
// Download the latest version from the official website
// Extract the files to a directory on your server
// Run the PHPDocumentor script from the command line
```

To install PHPDocumentor using PEAR, you can use the following command in the terminal:

```php
pear install PhpDocumentor
```

This will automatically download and install PHPDocumentor using the PEAR package manager.