PHPConf-TW 2012 # Twig
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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.
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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
- 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 ($content); ?> • <?php echo rand(0, 10); ?> • {{ content|nl2br }} • {{ content|raw }} {{ content|nl2br|length }} • {{ random(10) }}
- 14. Logic & Loop • {% if %} {% elseif %} {% else %} {% endif %} • {% for key, value in data %} {% endfor %} • {% set name = ‘wake’ %}
- 15. Organizational and reusable
- 16. Extends layout.html <!DOCTYPE html> guest.html <html lang="en"> <head> <meta charset="utf-8"> {% extends layout.html %} <title>The HTML5 Herald</title> </head> <body> {% block wrapper %} default content member.html {% endblock %} {% extends layout.html %} </body> </html>
- 17. Horizontal reuse page.html navigator.html {% use navigator.html %} {% use login.html %} {% block navigator %} <div class=”wrapper”> <div class=”navigator”> {{ block (‘navigator’) }} login.html </div> <div class=”login”> {{ block (‘login’) }} {% block login %} </div> </div>
- 18. Expandable
- 19. Filter, Function, Macro and others
- 20. The role of Twig
- 21. Template engine
- 22. View helper
- 23. MVC Controller Control ( Logic / Loop ) { C View Data handling ( Filters / Functions ) V View binding ( Structures / Macros ) Model M
- 24. Hmm, it looks not bad, but ...
- 25. ...... VS
- 27. Photo URL passing photo.html original data <img src=” http://www/:size/photo.jpg {{ url | image_to_large }} ”> php define Twig - addFilter _LARGE_PHOTO ‘L’ _SMALL_PHOTO ‘S’ image_to_*
- 28. Template driven member.php A.html class Member { <div> function __get ($name) { {{ member.age }} $loader = “_load$name”; </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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