Functional FIPS: Learning PHP for Drupal Theming

Functional FIPS
PHP for Drupal Designers and Themers

www.hicktech.com
@emmajanedotnet

About this talk
●
There are a lot of theme snippets available in the Theme Guide. There
is not, however, a lot of information about PHP which is the language
that makes up these snippets. If you're tired of copying, pasting and
praying and are ready to understand some of the magic behind those
snippets, this session is for you!
●
In this session you will learn how to manipulate and master:
●
The very, very basics of PHP and the popular theming engine
PHPtemplate
●
Variables and tpl.php template files
●
Arrays and objects and other crowbarworthy data containers.
●
The really scary looking stuff that's in the mysterious file
template.php
●
Examples will be pulled from the Drupal.org Theme Guide as well as
the wildly successful book on theming, Front End Drupal (coauthored
by Emma Jane and Konstantin Kaefer).

Stick around, I've got copies to give away.

Drupal Theme Guide
http://drupal.org/themeguide

Theme snippets
http://drupal.org/node/45471

Variables

http://www.jontwest.com/ProBono.php

Contents of variables
exist inside their containers

Contents of variables
exist inside their containers

http://www.laboutiquedupetitprince.com/en/figures56/pixi81/pixifigurethelittle

princesheepbox518.html

Regions

http://opswingers.free.fr/cestquoi.htm

Functions

http://www.dehnbase.org/sd/tutorial/counterrotate.php?p=4

Functions

user_is_logged_in ()

user_access ('access administration pages')

in_array ('admin', array_values ($user>roles))

Theming
http://usawestwa.com/Outfit/

Theming
www.squaredanceomaha.org/dress

PHPtemplate

Decide on the dance
Choose your clothes Dance the dance

http://www.kodakgallery.com/Slideshow.jsp?mode=fromshare&Uc=6m9np57.9mj7q0yf&Uy=ripni&Ux=0

PHPtemplate

Collect the content from
Drupal using modules Run through the Print the variables
Drupal theme in your template
functions & your files
custom theme layer


How to create themes
1.Download an existing theme.
2.Look for variables and functions.
3.Alter the placement of the “printed” things.
4.Save and upload the theme files.
5.Clear the theme registry (Drupal admin).
6.Enjoy your new theme.

page.tpl.php template file
<!DOCTYPE html PUBLIC "//W3C//DTD XHTML 1.0 Strict//EN"
          "http://www.w3.org/TR/xhtml1/DTD/xhtml1strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="<?php print
$language>language ?>" xml:lang="<?php print $language>language ?
>">
  <head>
    <title><?php print $head_title ?></title>
    <?php print $head ?>
    <?php print $styles ?>
  </head>
  <body>
    <div id="container">
      <div id="header">
        <div id="logoWrapper">
          <?php if ($logo) { ?>
          <div id="logo">
            <a href="<?php print $base_path ?>" title="<?php print
t('Home') ?>"><img src="<?php print $logo ?>" alt="<?php print
t('Home') ?>" /></a>
          </div><?php } ?>

Variables must be printed

<?php print ?>

Variables must be printed

<title><?php print $head_title ?></title>

Zomg what are those variables?
●
Look at /modules/system/page.tpl.php
OR
●
http://api.drupal.org/api/drupal/modules
systempage.tpl.php/6

Conditionals
if (you're the inside couple) {
go clockwise
}

} else {
go counter clockwise.
}

http://www.dehnbase.org/sd/tutorial/counterrotate.php?p=4

What's an “if”?
if ($logo) {
<?php print ?>
}

Fancy data structures: arrays + objects
Grouping and sorting your data

Fancy data structures: arrays

Multiple “drawers” of sorted content

Multiple values stored in one array

$node object

$node>nid
$node>body
$node>content['body'][#value]

“Advanced” PHP
●
Never be afraid to try something.
●
Always back up your files first.
●
Take a LOT of notes.
●
Be bold! And be brave!

template.php: what's up with that?
●
Preparing variables that weren't assembled by
Drupal and its modules.
●
Altering the contents of variables that were
prepared by Drupal and its modules.
●
Special theming functions to do fun things like
'edit this block' links and random images.
●
Read the Zen base theme documentation and
template.php file.

Using template.php

Collect the content from
Drupal using modules Create new Print the variables
and run it through the information to feed in your template
default theme functions to your theme files
provided by Drupal.


PHP Snippet
from: http://drupal.org/node/21401

<?php if ($submitted) { ?>
<span class="submitted">
<?php  if ($node>type == 'blog') {
       print 'Posted ' . format_date($node>created, 'custom',
"F jS, Y") . ' by ' . theme('username', $node);
       }
       else {
       print 'By ' . theme('username', $node) . ' <br /> ' .
format_date($node>created, 'custom', "F jS, Y") ;
       }
?>
</span>
<?php } ?>

Summarizing PHP for Designers
●
PHP is a linear “programming” language,
just like a dance.
●
PHP stores information in variables.
●
Sometimes variables hold lots of information
in special variables called “arrays.”
●
Drupal has lots of magic variables that are
loaded with content. Check out:
http://drupal.org/themeguide

Ready to rope
yourself a
theme?
@emmajanedotnet
www.hicktech.com < theming classes
Front End Drupal < theming book

http://www.flickr.com/photos/fkehren/3352577815/

Functional FIPS: Learning PHP for Drupal Theming

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