TYPE 2

TYPE 4

TYPE 3

TYPE 1

TYPE 2

TYPE 4

TYPE 3

TYPE 1

json

txt

AJAX

yaml

xml

TYPE 2

TYPE 4

TYPE 3

TYPE 1

TYPE 2

TYPE 4

TYPE 3

TYPE 1

a parameter

a loop

a variable

a command

/var/www/htdocs

/usr/lib/html

/var/www/html

/usr/www/html

var/www/html/

an action that is taken for any input, even if matches a specified conditions

a case only for what happens when the asterisk character is passed intro the script

the action of all of the other cases combined together

a case that matches any value? providing a default option if nothing else catches that value