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README

PHP Yaml

#

Yaml loader libarary for PHP

# --- %YAML:1.1 title: Simple & Lightweight PHP YAML Class version: 1.0 authors: [chris wanstrath ([email protected]), vlad andersen ([email protected]), erik amaru ortiz ([email protected])] links: [http://www.yaml.org, https://github.com/eriknyk/Yaml] license: [MIT License, http://www.opensource.org/licenses/mit-license.php] copyright: "(c) 2005-2006 Chris Wanstrath, 2006-2011 Vlad Andersen, 2012 Erik Amaru Ortiz" tested on: [php 5.2.x, php 5.3.10]

installation: > Just copy and include Yaml.php to work directory and use it!

about: > From www.yaml.org:

"YAML(tm) (rhymes with 'camel') is a human-friendly, cross language, Unicode based data serialization language designed around the common native data structures of agile programming languages. It is broadly useful for programming needs ranging from configuration files to Internet messaging to object persistence to data auditing. Together with the Unicode standard for characters, the YAML specification provides all the information necessary to understand YAML Version 1.1 and to creating programs that process YAML information.

YAML(tm) is a balance of the following design goals:

• YAML documents are very readable by humans.
• YAML interacts well with scripting languages.
• YAML uses host languages' native data structures.
• YAML has a consistent information model.
• YAML enables stream-based processing.
• YAML is expressive and extensible.

• YAML is easy to implement."

  YAML makes a lot of sense. It's easy to use, easy to learn, and cool. As the lucky stiff named why once said, "YAML is a beacon of light."

  If you're new to YAML, may we suggest YAML In Five Minutes:

• http://yaml.kwiki.org/?YamlInFiveMinutes

  If you don't have five minutes, realize that this README is a completely valid YAML document. Dig in, load this or any YAML file into an array with Spyc and see how easy it is to translate friendly text into usable data.

  The purpose of Spyc is to provide a pure PHP alternative to Syck, a simple API for loading and dumping YAML documents, a YAML loader which understands a usable subset of the YAML spec, and to further spread the glory of YAML to the PHP masses.

  If you're at all hesitant ("usable subset of YAML?!"), navigate http://yaml.org/start.html. Spyc completely understands the YAML document shown there, a document which has features way beyond the scope of what normal config files might require. Try it for yourself, and then start enjoying the peace of mind YAML brings to your life.

meat and a few potatoes:

• concept: Loading a YAML document into PHP brief: > $yaml will become an array of all the data in wicked.yaml code: |

  include('spyc.php');

  $yaml = Spyc::YAMLLoad('wicked.yaml');

• concept: Loading a YAML string into PHP brief: > $array will look like this: array('A YAML','document in a','string') code: |

  include('spyc.php');

  $yaml = '- A YAML\n- document in a\n- string.'; $array = Spyc::YAMLLoad($yaml);

• concept: Dumping a PHP array to YAML brief: > $yaml will become a string of a YAML document created from $array. code: |

  include('spyc.php');

  $array['name'] = 'chris'; $array['sport'] = 'curbing';

  $yaml = Spyc::YAMLDump($array);

prior art:

• who: [Brian Ingerson, Clark Evans, Oren Ben-Kiki] why?: > The YAML spec is really a piece of work, and these guys did a great job on it. A simple and elegant language like YAML was a long time coming and it's refreshing to know such able minded individuals took the task to heart and executed it with cunning and strength. In addition to their various noteworthy contributions to YAML parsers and related projects, YAML.pm's README is a treasure trove of information for knowledge seekers. Thanks, guys.

• who: why the lucky stiff why?: > As the author of Syck, the code used in Ruby for the language's YAML class and methods, why is indirectly (directly?) responsible for my first exposure to YAML (as a config file in a Ruby web-app) and the countless hours I spent playing with this sheik new data format afterwards. Syck's README is a YAML file and thus the inspiration for this file and, even, this very piece of software.

• who: Steve Howell why?: > Python's YAML implementation. PyYAML's README file is also YAML, so it too inspired the YAML format of this README file.

• who: [Rasmus Lerdorf, Zeev Suraski, Andi Gutmans, et al] why?: > PHP is great at what it does best. It's also paid a lot of my bills. Thanks.

bugs: report: > Please see Spyc's Sourceforge project page for information on reporting bugs. speed: > This implementation was not designed for speed. Rather, it was designed for those who need a pure PHP implementation of a YAML parser and who are not overly concerned with performance. If you want speed, check out Syck. depth: > This parser is by no means a comprehensive YAML parser. For supported features and future plans, check the website. unicode: > YAML is supposed to be unicode, but for now we're just using ASCII. PHP has crappy unicode support but who knows what the future holds.

resources:

• http://www.yaml.org
• http://www.yaml.org/spec/
• http://yaml.kwiki.org/?YamlInFiveMinutes
• http://www.whytheluckystiff.net/syck/
• http://yaml4r.sourceforge.net/cookbook/

thanks:

• Adam Wood
• Daniel Ferreira
• Aaron Jensen
• Mike Thornton
• Fabien Potencier
• Mustafa Kumas