Welcome to my series on every PHP keyword and its usage. Today’s items:
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
Cases in a
switch statement are denoted with the
case keyword, and typically completed using the
break keyword. However,
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
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.
Author Callum Muir