PHPConf-TW 2012 # Twig

Nov 5, 2012Download as KEY, PDF1 like2,343 views

The document discusses the Twig template engine and its advantages over traditional PHP templates. Some key points: 1. Twig templates are compiled and cached for better performance compared to PHP templates. It also uses extensions and caching like APC for further optimizations. 2. Twig templates promote cleaner and more beautiful code through features like variables, filters, functions, logic/loops, inheritance/extensions, and reusability. 3. Twig helps enforce separation of concerns in MVC by handling data, view binding, and view structures/macros while keeping control logic in controllers.

PHP is the most
powerful template
engine

Performance
? Compile & cache
? PHP Extension - Twig_Template::getAttribute()
? APC & Memcached

Variables
? <?php echo $name; ?> ? {{ name }}

? <?php echo ? {{ member.nickname }}
$member->nickname;
?> ? {{ member[��nickname��] }}

? <?php ? {{
echo member
$member[��nickname��]; ? member.nickname
?> : ��Guest��
}}

$Filters / Functions ? <?php echo nl2br ($content); ?> ? <?php echo html_entity_decode ($content); ?> ? <?php echo rand(0, 10); ?> ? {{ content|nl2br }} ? {{ content|raw }} {{ content|nl2br|length }} ? {{ random(10) }}$

Logic & Loop

? {% if %} {% elseif %} {% else %} {% endif %}

? {% for key, value in data %} {% endfor %}

? {% set name = ��wake�� %}

Extends
layout.html
<!DOCTYPE html>
guest.html
<html lang="en">
<head>
<meta charset="utf-8"> {% extends layout.html %}
<title>The HTML5 Herald</title>
</head>
<body>

{% block wrapper %}
default content
member.html
{% endblock %} {% extends layout.html %}
</body>
</html>

Horizontal reuse
page.html
navigator.html
{% use navigator.html %}
{% use login.html %}
{% block navigator %} <div class=/slideshow/phpconftw-2012-twig/15031060/��wrapper/slideshow/phpconftw-2012-twig/15031060/��>
<div class=/slideshow/phpconftw-2012-twig/15031060/��navigator/slideshow/phpconftw-2012-twig/15031060/��>

{{ block (��navigator��) }}
login.html </div>

<div class=/slideshow/phpconftw-2012-twig/15031060/��login/slideshow/phpconftw-2012-twig/15031060/��>

{{ block (��login��) }}
{% block login %} </div>
</div>

MVC
Controller
Control ( Logic / Loop )

{
C
View Data handling ( Filters / Functions )
V View binding ( Structures / Macros )
Model

M

$Photo URL passing photo.html original data <img src=/slideshow/phpconftw-2012-twig/15031060/�� http://www/:size/photo.jpg {{ url | image_to_large }} /slideshow/phpconftw-2012-twig/15031060/��> php de?ne Twig - addFilter _LARGE_PHOTO ��L�� _SMALL_PHOTO ��S�� image_to_*$

$Template driven member.php A.html class Member { <div> function __get ($name) { {{ member.age }} $loader = ��_load$name/slideshow/phpconftw-2012-twig/15031060/��; </div> return $this->$loader (); } B.html function _loadAge () { <div> // load from database {{ member.age }} } </div> }$

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PHPConf-TW 2012 # Twig

1. TWIG

2. About Me Wake Liu wake.gs@gmail.com

3. Before the session starts

4. Do I need a template engine?

5. PHP is the most powerful template engine

7. So, we really need a template engine ?

8. TWIG

9. Performance ? Compile & cache ? PHP Extension - Twig_Template::getAttribute() ? APC & Memcached

10. How it feels to use Twig

11. Clean and Beautiful

12. Variables ? <?php echo $name; ?> ? {{ name }} ? <?php echo ? {{ member.nickname }} $member->nickname; ?> ? {{ member[��nickname��] }} ? <?php ? {{ echo member $member[��nickname��]; ? member.nickname ?> : ��Guest�� }}

13. Filters / Functions ? <?php echo nl2br ($content); ?> ? <?php echo html_entity_decode ($content); ?> ? <?php echo rand(0, 10); ?> ? {{ content|nl2br }} ? {{ content|raw }} {{ content|nl2br|length }} ? {{ random(10) }}

14. Logic & Loop ? {% if %} {% elseif %} {% else %} {% endif %} ? {% for key, value in data %} {% endfor %} ? {% set name = ��wake�� %}

15. Organizational and reusable

16. Extends layout.html <!DOCTYPE html> guest.html <html lang="en"> <head> <meta charset="utf-8"> {% extends layout.html %} <title>The HTML5 Herald</title> </head> <body> {% block wrapper %} default content member.html {% endblock %} {% extends layout.html %} </body> </html>

17. Horizontal reuse page.html navigator.html {% use navigator.html %} {% use login.html %} {% block navigator %} <div class=/slideshow/phpconftw-2012-twig/15031060/��wrapper/slideshow/phpconftw-2012-twig/15031060/��> <div class=/slideshow/phpconftw-2012-twig/15031060/��navigator/slideshow/phpconftw-2012-twig/15031060/��> {{ block (��navigator��) }} login.html </div> <div class=/slideshow/phpconftw-2012-twig/15031060/��login/slideshow/phpconftw-2012-twig/15031060/��> {{ block (��login��) }} {% block login %} </div> </div>

18. Expandable

19. Filter, Function, Macro and others

20. The role of Twig

21. Template engine

22. View helper

23. MVC Controller Control ( Logic / Loop ) { C View Data handling ( Filters / Functions ) V View binding ( Structures / Macros ) Model M

24. Hmm, it looks not bad, but ...

25. ...... VS

26. Some more interesting things

27. Photo URL passing photo.html original data <img src=/slideshow/phpconftw-2012-twig/15031060/�� http://www/:size/photo.jpg {{ url | image_to_large }} /slideshow/phpconftw-2012-twig/15031060/��> php de?ne Twig - addFilter _LARGE_PHOTO ��L�� _SMALL_PHOTO ��S�� image_to_*

28. Template driven member.php A.html class Member { <div> function __get ($name) { {{ member.age }} $loader = ��_load$name/slideshow/phpconftw-2012-twig/15031060/��; </div> return $this->$loader (); } B.html function _loadAge () { <div> // load from database {{ member.age }} } </div> }

29. Thank you Q &A

Editor's Notes

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PHPConf-TW 2012 # Twig

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