The scotchbox Vagrantfile with added xdebug. Tested and working with PHPStorm.

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure("2") do |config|

    config.vm.box = "scotch/box"
    config.vm.network "private_network", ip: "192.168.33.10"
    config.vm.hostname = "scotchbox"
    config.vm.synced_folder ".", "/var/www", :mount_options => ["dmode=777", "fmode=666"]
    
    # Optional NFS. Make sure to remove other synced_folder line too
    #config.vm.synced_folder ".", "/var/www", :nfs => { :mount_options => ["dmode=777","fmode=666"] }
    
	config.vm.provision "shell", inline: <<-SHELL
        sudo apt-get update
        sudo apt-get install php5-xdebug php5-dev
        XDEBUG_PATH=$( find /usr -name 'xdebug.so' | head -1 )
        sudo truncate -s 0 /etc/php5/apache2/conf.d/20-xdebug.ini
        echo "; xdebug
        zend_extension=\"$XDEBUG_PATH\"
        xdebug.remote_connect_back = 1
        xdebug.remote_autostart = 0
        xdebug.remote_enable = 1
        xdebug.remote_handler = \"dbgp\"
        xdebug.remote_port = 9000
        xdebug.remote_mode = \"req\"
        xdebug.var_display_max_children = 512
        xdebug.var_display_max_data = 1024
        xdebug.remote_host = \"192.168.30.10\"
        xdebug.idekey = \"SCOTCHDEBUG\"
        xdebug.var_display_max_depth = 10" >> /etc/php5/apache2/conf.d/20-xdebug.ini

	    sudo service apache2 restart
	SHELL
end