# PHP fun Sometimes PHP is a pain. no, kinda always a pain. when you update PHP on your server and everything falls over, theme breaks, etc, you can roll back the php-fpm socket temporarily by editing the sites-available conf in nginx. Apache2 is a little different.

```
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```

```
sudo vim /etc/nginx/sites-available/default
```

Change the FastCGI backend to use the new (or old version) PHP-FPM socket, save and exit the file

```
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```

```
location ~ \.php$ {
```

```
        include snippets/fastcgi-php.conf;
```

```
        fastcgi_pass unix:/run/php/php7.2-fpm.sock;
```

```
}
```

Run the configuration test

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```

```
$ nginx -t
```

```
​
```

Restart the web server

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```

```
$ sudo service nginx restart
```

see if that gets you going long enough to figure out why php is breaking your site.