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hello everyone welcome to another
WordPress tutorial in a previous lesson
we learn how to output the date author
name and categories for each blog post
and we also set things up so that the
category links to a categories archive
page and the author name links to an
author archives page but what we didn't
discuss in a previous lesson is how to
control the output of these archive
pages so WordPress is very intelligent
out-of-the-box it will use the index dot
PHP file from our theme folder to
generate all these different archive
pages on the fly but we can do WordPress
a favor and create a new file in our
theme folder named archived PHP and then
we can customize how these archive
screens behave so for example if we
click on this opinion link so this is an
archive for the opinion category
wouldn't it be nice if there was some
sort of header or title here that read
opinion archives and then when we click
on the author name wouldn't it be nice
if this said author archives colon and
then the author name so we're going to
learn how to do just that in this lesson
so let's get started our first step is
to head over to the code okay and we're
going to create a new file in the theme
folder named archive dot PHP now you can
copy and paste the contents from
index.php
into this newly created file and then
scroll to the top ok so we want to begin
customizing this file after this line of
code so I'm going to drop out of PHP and
then we can re-enter PHP here and then
the new code that we're going to add
will live right here where the cursor is
so we'll write heading level 2 sample
text close the heading level 2 so now if
we refresh we can see that when we're on
an archive so this is an author archive
screen our sample text is here and if we
go to a category archive screen it's
there but if we go to the home page it's
not there
so our archive dot PHP file is working
but we need to customize it and add a
bit of logic because we need to output
different text depending on what type of
archive we're viewing so for example
this is a category archive
this is an author archive if I click on
a post and we go look at the URL bar you
can see that this is a month archived
May of 2014 and this is a day archive
the 19th day of the fifth month of 2014
and even this is a year archived so
archive dot PHP is a very flexible
powerful file that can control many
different views of our posts so we need
to build conditional logic using if and
else if statements to output different
titles here depending on the type of
archive that we're viewing so let's get
started we obviously do not want sample
text so we'll delete that and instead
will drop into PHP and we'll build our
logic so the first thing we'll do is
check to see if we're in a category so
if we're in a category that means it's a
category archive and we can output
certain text here so we'll say for now
this is a category and we'll fill this
in with the proper text in just a moment
but that will do the job for now next up
what if it's not a category so we'll say
else if some other condition is met so
then we'll check to see if it's a tag
archive and then we can output certain
text that makes sense for a tag archive
there we'll fill that in a little bit
later in the lesson what if it's
something else
so we'll say else if what if we're in an
author archive then we can output text
that makes sense for an author screen or
an author archive screen so you can see
that all we're doing is repeating a
pattern we're saying if this condition
is met do this else if this else if this
and we're going to do this many more
times so we're covering all of our bases
now let's continue and cover the date
bases so we'll say else if what if it is
a day archive then we'll need to display
some text focused around a date for this
particular day now we'll fill the date
logic in later but for now we can just
say echo day archive what if it is a
month archive I will say that WordPress
makes this quite easy because WordPress
has all of these neat functions is
category is tagged as author is day as
month so we're not having to do the
heavy lifting and building these
conditional values that that report back
true or false WordPress is doing the
heavy lifting we're just building a
skeleton so we'll echo out month text
there in just a moment and what if it's
a year archive is year okay and then
finally if it's none of these if none of
these conditions are met then we'll say
else echo just simply archives so this
is the fallback line if none of these
conditions are met then we'll just
simply output archives let's be sure to
add a semicolon after this line and
let's go test this out in the web
browser so if we refresh we can see that
we're on a year archive and now the word
year is being output now obviously we
would want this to echo 2014 and not
literally the word year but this is just
a proof of concept to make sure that our
skeleton logic is in place so far so if
we go to a month archive you can see
that that's working if we go to the day
archive
that is also working category archive
looks good and author archive looks good
so now our job is to build out these
echo lines for each condition and make
sure that the text were outputting
actually makes sense so for this first
one what we need to do is we actually
want to output the name of the category
now WordPress makes our lives very easy
in this situation all we need to do is
call a function named single cat title
yes it is that easy so now if we go to a
category archive we can see that the
word is in place its head back to our
code so the next scenario is if it is a
tag archive now I'm currently not
outputting the tag anywhere in the blog
post template but if we go to the URL
screen I'll show you that I do have a
sample tag set up named sample tag and
I've assigned it to two different posts
so let's go ahead and give this a shot
instead of echoing tag WordPress again
makes things simple with single tag
title function so if we refresh it's
that simple
in this case tags are very similar to
categories so moving on to the next case
which is if we're currently viewing an
author archive screen so we will delete
this echo author sample line and instead
we'll write this the post which will
sort of initialize the first post that
is being queried in this archive and
what that will do is make sure that this
following line will always work echo we
want to output the phrase author
archives colon space and then we want to
output the name of the author so get the
author now a quick note in some cases
this line of code will work without this
the post function but if your site has
more than one author and if the stars
are aligned just properly regarding the
way the posts are lined up on the
archive just include this because then
with 100% certainty this line will
always work perfectly now because we did
use the post which is sort of querying
the first post in the archive
we want to be sure to also run rewind
posts so that the loop can go on
unaffected so now if we refresh or we
don't even need to refresh if we just
click on an author to view an author
archives we can see that it's outputting
the exact text that we would like so
let's head back to our code and focus on
the is day scenario so we don't need
this sample text instead will output the
phrase daily archives colon space and
then we'll use a function named get the
date so now in our browser if we head to
a day archive so I will adjust the URL
to point to May 19th we can see that
daily archives colon and then the date
is being output now that one was simple
and we'll use something very similar for
the is month so we can just copy and
paste this line for this is month
scenario we'll change this to monthly
archives but then we want to include
some options within the parentheses for
the get to date function so instead of
leaving this empty will say output the
month capital F and then also the year
so if we refresh and if we go to a month
archive we can see that that is doing
exactly what we want and finally we'll
do something similar for the is your
scenario so we'll remove this paste in
our line change this to yearly and then
inside they get the date function all we
want to output is just the year now a
quick note if you're unfamiliar with PHP
date formatting there's different letter
codes that output different date related
things
so the digit for a month or you can
spell out the name of the month you can
output the year with four digits or with
two digits you have all sorts of
different options and different letters
represent different codes but if you're
curious go ahead and Google PHP date
formatting but for now if we go to a
year archive
we can see that it's working just like
we expected now this means that our
archive title section is complete we've
covered all of our bases now obviously
there's a lot more that you can do with
archive.php then just output different
titles so for example if on the archive
view we wanted to only output the
excerpt we could do that so we scroll
down we'd find the content and change it
to the excerpt so then we can see that
on archive pages only the excerpt is
being shown and if you click on the
actual post then you see the full post
and this means that the home page is
still outputting full post as well so
you can see the archived PHP lets us
control many different views for our
posts so this lesson was just to whet
your appetite and get you to begin
experimenting with the archived PHP file
so thank you very much for watching I
hope you feel like you learn something
and stay tuned for more WordPress and
web development tutorials thanks bye

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