PHP Keywords: switch, case, default and endswitch
Contents
Welcome to my series on every PHP keyword and its usage. Today’s items: switch
, case
, default
and endswitch
.
A switch
is used to handle situations where you have a lot of different conditional branches for a single variable. Instead of using a large number of elseif
statements, it’s often cleaner to use a switch
.
Cases in a switch
statement are denoted with the case
keyword, and typically completed using the break
keyword. However, return
or exit
statements negate the need to explicitly break the case.
A final special case is the default
case, which works the same way as the else
clause in an if
statement; a condition that is only triggered if none of the other cases are met.
In PHP, a switch
has two forms, one using curly braces, and the other using the endswitch
keyword.
Usage
Curly braces
|
|
endswitch
Note: This usage seems to be aimed mostly at templates, so I would encourage you not to use it outside of templating. If you’re looking to avoid spaghetti code entirely, you may want to look into Twig, which is a popular templating engine that encourages you to separate behaviour from presentation.
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Author Callum Muir
LastMod 16/02/2019