[Docs] Added base documentation

doc/book/adapter.md

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+# Zend\\Serializer\\Adapter
+
+`Zend\Serializer` adapters create a bridge for different methods of serializing with very little
+effort.
+
+Every adapter has different pros and cons. In some cases, not every [PHP](http://php.net) datatype
+(e.g., objects) can be converted to a string representation. In most such cases, the type will be
+converted to a similar type that is serializable.
+
+As an example, [PHP](http://php.net) objects will often be cast to arrays. If this fails, a
+`Zend\Serializer\Exception\ExceptionInterface` will be thrown.
+
+## The PhpSerialize Adapter
+
+The `Zend\Serializer\Adapter\PhpSerialize` adapter uses the built-in `un/serialize`
+[PHP](http://php.net) functions, and is a good default adapter choice.
+
+There are no configurable options for this adapter.
+
+## The IgBinary Adapter
+
+[Igbinary](http://pecl.php.net/package/igbinary) is Open Source Software released by Sulake Dynamoid
+Oy and since 2011-03-14 moved to [PECL](http://pecl.php.net) maintained by Pierre Joye. It's a
+drop-in replacement for the standard [PHP](http://php.net) serializer. Instead of time and space
+consuming textual representation, igbinary stores [PHP](http://php.net) data structures in a compact
+binary form. Savings are significant when using memcached or similar memory based storages for
+serialized data.
+
+You need the igbinary [PHP](http://php.net) extension installed on your system in order to use this
+adapter.
+
+There are no configurable options for this adapter.
+
+## The Wddx Adapter
+
+[WDDX](http://wikipedia.org/wiki/WDDX) (Web Distributed Data eXchange) is a programming-language-,
+platform-, and transport-neutral data interchange mechanism for passing data between different
+environments and different computers.
+
+The adapter simply uses the
+[[wddx](http://wikipedia.org/wiki/WDDX)\*()](http://php.net/manual/book.wddx.php)
+[PHP](http://php.net) functions. Please read the [PHP](http://php.net) manual to determine how you
+may enable them in your [PHP](http://php.net) installation.
+
+Additionally, the [SimpleXML](http://php.net/manual/book.simplexml.php) [PHP](http://php.net)
+extension is used to check if a returned `NULL` value from `wddx_unserialize()` is based on a
+serialized `NULL` or on invalid data.
+
+Available options include:
+
+Option  | Data Type | Default Value | Description
+--------|-----------|---------------|------------
+comment | `string`  |               | An optional comment that appears in the packet header.
+
+## The Json Adapter
+
+The [JSON](http://wikipedia.org/wiki/JavaScript_Object_Notation) adapter provides a bridge to the
+`Zend\Json` component. Please read the [ZendJson documentation](zend.json.introduction) for
+further information.
+
+Available options include:
+
+Option                  | Data Type                | Default Value
+------------------------|--------------------------|--------------
+cycle_check             | `boolean`                | `false`
+object_decode_type      | `Zend\Json\Json::TYPE_*` | `Zend\Json\Json::TYPE_ARRAY`
+enable_json_expr_finder | `boolean`                | `false`
+
+## The PythonPickle Adapter
+
+This adapter converts [PHP](http://php.net) types to a [Python
+Pickle](http://docs.python.org/library/pickle.html) string representation. With it, you can read the
+serialized data with Python and read Pickled data of Python with [PHP](http://php.net).
+
+Available options include:
+
+Option   | Data Type           | Default Value | Description
+---------|---------------------|---------------|------------
+protocol | `integer` (0/1/2/3) | 0             | The Pickle protocol version used on serialize
+
+### Datatype merging (PHP to Python Pickle)
+
+[PHP Type](http://php.net/) | [Python Pickle Type](http://docs.python.org/library/pickle.html)
+----------------------------|-----------------------------------------------------------------
+`NULL`                      | None
+`boolean`                   | `boolean`
+`integer`                   | `integer`
+`float`                     | `float`
+`string`                    | `string`
+`array` list                | `list`
+`array` map                 | `dictionary`
+`object`                    | `dictionary`
+
+### Datatype merging (Python Pickle to PHP)
+
+[Python Pickle Type](http://docs.python.org/library/pickle.html) | [PHP Type](http://php.net/)
+-----------------------------------------------------------------|----------------------------
+`None`                                                           | `NULL`
+`boolean`                                                        | `boolean`
+`integer`                                                        | `integer`
+`long`                                                           | `integer` or `float` or `string` or `Zend\Serializer\Exception\ExceptionInterface`
+`float`                                                          | `float`
+`string`                                                         | `string`
+`bytes`                                                          | `string`
+`unicode string`                                                 | `string` UTF-8
+`list`                                                           | `array` list
+`tuple`                                                          | `array` list
+`dictionary`                                                     | `array` map
+All other types                                                  | `Zend\Serializer\Exception\ExceptionInterface`
+
+## The PhpCode Adapter
+
+The `Zend\Serializer\Adapter\PhpCode` adapter generates a parsable [PHP](http://php.net) code
+representation using [var\_export()](http://php.net/manual/function.var-export.php). On restoring,
+the data will be executed using [eval](http://php.net/manual/function.eval.php).
+
+There are no configuration options for this adapter.
+
+> ### Warning
+#### Unserializing objects
+Objects will be serialized using the
+[\_\_set\_state](http://php.net/manual/language.oop5.magic.php#language.oop5.magic.set-state) magic
+method. If the class doesn't implement this method, a fatal error will occur during execution.
+
+> ### Warning
+#### Uses eval()
+The `PhpCode` adapter utilizes `eval()` to unserialize. This introduces both a performance and
+potential security issue as a new process will be executed. Typically, you should use the
+`PhpSerialize` adapter unless you require human-readability of the serialized data.

doc/book/intro.md

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+# Introduction to Zend\Serializer
+
+The `Zend\Serializer` component provides an adapter based interface to simply
+generate storable representation of PHP types by different facilities, and
+recover.
+
+For more information what a serializer is read the wikipedia page of
+[Serialization](http://en.wikipedia.org/wiki/Serialization).
+
+## Quick Start
+
+Serializing adapters can either be created from the provided
+`Zend\Serializer\Serializer::factory` method, or by simply instantiating one of
+the `Zend\Serializer\Adapter\*` classes.
+
+```php
+use Zend\Serializer\Serializer;
+
+// Via factory:
+$serializer = Zend\Serializer\Serializer::factory('PhpSerialize');
+
+// Alternately:
+$serializer = new Zend\Serializer\Adapter\PhpSerialize();
+
+// Now $serializer is an instance of Zend\Serializer\Adapter\AdapterInterface,
+// specifically Zend\Serializer\Adapter\PhpSerialize
+
+try {
+    $serialized = $serializer->serialize($data);
+    // now $serialized is a string
+
+    $unserialized = $serializer->unserialize($serialized);
+    // now $data == $unserialized
+} catch (Zend\Serializer\Exception\ExceptionInterface $e) {
+    echo $e;
+}
+```
+
+The method `serialize()` generates a storable string. To regenerate this
+serialized data you can simply call the method `unserialize()`.
+
+Any time an error is encountered serializing or unserializing,
+`Zend\Serializer` will throw a `Zend\Serializer\Exception\ExceptionInterface`.
+
+Because of an application often uses internally only one serializer it is
+possible to define and use a default serializer. That serializer will be used by
+default by other components like `Zend\Cache\Storage\Plugin\Serializer`.
+
+To use the default serializer you can simply use the static serialization
+methods of the basic `Zend\Serializer\Serializer`:
+
+```php
+use Zend\Serializer\Serializer;
+
+try {
+    $serialized = Serializer::serialize($data);
+    // now $serialized is a string
+
+    $unserialized = Serializer::unserialize($serialized);
+    // now $data == $unserialized
+} catch (Zend\Serializer\Exception\ExceptionInterface $e) {
+    echo $e;
+}
+```
+
+## Basic configuration Options
+
+To configure a serializer adapter, you can optionally use an instance of
+`Zend\Serializer\Adapter\AdapterOptions`, an instance of one of the adapter
+specific options class, an `array` or an instance of `Traversable`. The adapter
+will convert it into the adapter specific options class instance (if present) or
+into the basic `Zend\Serializer\Adapter\AdapterOptions` class instance.
+
+Options can be passed as second argument to the provided
+`Zend\Serializer\Serializer::factory` method, using the method `setOptions` or
+set as constructor argument.
+
+## Available Methods
+
+Each serializer implements the interface
+`Zend\Serializer\Adapter\AdapterInterface`.
+
+This interface defines the following methods:
+
+Method signature | Description
+---------------- | -----------
+`serialize(mixed $value) : string` | Generates a storable representation of a value.
+`unserialize(string $value) : mixed` | Creates a PHP value from a stored representation.
+
+The basic class `Zend\Serializer\Serializer` will be used to instantiate the
+adapters, to configure the factory and to handle static serializing.
+
+It defines the following static methods:
+
+Method signature | Description
+---------------- | -----------
+`factory(string|Zend\Serializer\Adapter\AdapterInterface $adapterName, Zend\Serializer\Adapter\AdapterOptions|array|Traversable|null $adapterOptions = null) : Zend\Serializer\Adapter\AdapterInterface` | Create a serializer adapter instance.
+`setAdapterPluginManager(Zend\Serializer\AdapterPluginManager $adapters) : void` | Change the adapter plugin manager.
+`getAdapterPluginManager() : Zend\Serializer\AdapterPluginManager` | Get the adapter plugin manager.
+`resetAdapterPluginManager() : void` | Resets the internal adapter plugin manager.
+`setDefaultAdapter(string|Zend\Serializer\Adapter\AdapterInterface $adapter, Zend\Serializer\Adapter\AdapterOptions|array|Traversable|null $adapterOptions = null) : void` | Change the default adapter.
+`getDefaultAdapter() : Zend\Serializer\Adapter\AdapterInterface` | Get the default adapter.
+`serialize(mixed $value, string|Zend\Serializer\Adapter\AdapterInterface|null $adapter = null, Zend\Serializer\Adapter\AdapterOptions|array|Traversable|null $adapterOptions = null) : string` | Generates a storable representation of a value using the default adapter. Optionally different adapter could be provided as second argument.
+`unserialize(string $value, string|Zend\Serializer\Adapter\AdapterInterface|null $adapter = null, Zend\Serializer\Adapter\AdapterOptions|array|Traversable|null $adapterOptions = null) : mixed` | Creates a PHP value from a stored representation using the default adapter. Optionally different adapter could be provided as second argument.