Remove paragraph from file

I have a file (file.php) like this:

...
Match user foo
        ChrootDirectory /NAS/foo.info/
        ForceCommand internal-sftp
        AllowTcpForwarding no
        GatewayPorts no
        X11Forwarding no



Match user bar
        ChrootDirectory /NAS/bar.co.uk/
        ForceCommand internal-sftp
        AllowTcpForwarding no
        GatewayPorts no
        X11Forwarding no



Match user baz
        ChrootDirectory /NAS/baz.com/
        ForceCommand internal-sftp
        AllowTcpForwarding no
        GatewayPorts no
        X11Forwarding no

I am trying to write a bash script to delete one of the paragraphs.

---

So say I wanted delete the user foo from the file.php. After running the script, it would then look like this:

...
Match user bar
        ChrootDirectory /NAS/bar.co.uk/
        ForceCommand internal-sftp
        AllowTcpForwarding no
        GatewayPorts no
        X11Forwarding no



Match user baz
        ChrootDirectory /NAS/baz.com/
        ForceCommand internal-sftp
        AllowTcpForwarding no
        GatewayPorts no
        X11Forwarding no

How could I go about doing this. I have thought about using sed but that only seems to be appropriate for one liners?

sed -i 's/foo//g' file.php

And I couldn't do it for each individual line as most of the lines withing the paragraph are not unique! Any ideas?