How does the use of .htaccess for password protection in PHP differ from other methods of authentication?

Using .htaccess for password protection in PHP differs from other methods of authentication in that it is server-side configuration rather than being handled within the PHP code itself. .htaccess allows you to restrict access to certain directories or files on the server by requiring a username and password to access them. This method is often used for securing sensitive information or admin areas of a website. 

```php
// .htaccess file
AuthType Basic
AuthName "Restricted Area"
AuthUserFile /path/to/.htpasswd
Require valid-user
```

In this code snippet, the .htaccess file is used to set up basic authentication for a specific directory or file on the server. The `AuthType` directive specifies the type of authentication, `AuthName` sets the message displayed to users when prompted for a password, `AuthUserFile` specifies the path to the .htpasswd file containing the usernames and passwords, and `Require valid-user` ensures that only valid users can access the protected resource.

Keywords

.htaccess password protection authentication PHP methods

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