Create README.md

Author: adbario

README.md

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+# Dot - PHP dot notation array access
+Easy access to multidimensional arrays with dot notation.
+With dot notation, your code is cleaner and handling deeper arrays is super easy.
+
+This class implements PHP's ArrayAccess class, so Dot object can also be used same way as normal arrays but with dot notation.
+
+With Dot you can change this:
+
+    echo $data['info']['home']['address'];
+
+to this:
+
+    echo $data->get('info.home.address');
+
+or even this:
+
+    echo $data['info.home.address'];
+
+## Installation
+
+Via composer:
+
+    composer require adbario/php-dot-notation
+
+Or just copy the class file Dot.php and handle namespace yourself.
+
+## Usage
+
+This array will be used as a reference on this guide:
+
+    $array = [
+        'user' => [
+            'firstname' => 'John',
+            'lastname'  => 'Smith'
+        ],
+        'info' => [
+            'kids' => [
+                0 => 'Laura',
+                1 => 'Chris',
+                2 => 'Little Johnny'
+            ],
+            'home' => [
+                'address' => 'Rocky Road 3'
+            ]
+        ]
+    ];
+
+### Create Dot object
+
+To start without any data, just create a new Dot object:
+
+    $data = new \AdBar\Dot;
+
+If you have an array already available, inject it to Dot object:
+
+    $data = new \AdBar\Dot($array);
+    
+Set data after creating Dot object:
+
+    $data->setData($array);
+    
+Set data as a reference, and all changes will be made directly to original array:
+
+    $data->setDataAsRef($array);
+
+### Set value
+
+Set i.e. phone number in 'home' array:
+    
+    $data->set('info.home.tel', '09-123-456-789');
+    
+    // Array style
+    $data['info.home.tel'] = '09-123-456-789';
+
+Set multiple values at once:
+
+    $data->set([
+        'user.haircolor'    => 'blue',
+        'info.home.address' => 'Private Lane 1'
+    ]);
+
+If value already exists, Dot will override it with new value.
+
+### Get value
+
+    echo $data->get('info.home.address');
+    
+    // Default value if path doesn't exist
+    echo $data->get('info.home.country', 'some default value');
+    
+    // Array style
+    echo $data['info.home.address'];
+
+### Add value
+
+    $data->add('info.kids', 'Amy');
+
+Multiple values at once:
+
+    $data->add('info.kids', [
+        'Ben', 'Claire'
+    ]);
+
+### Check if value exists
+
+    if ($data->has('info.home.address')) {
+        // Do something...
+    }
+    
+    // Array style
+    if (isset($data['info.home.address'])) {
+        // Do something...
+    }
+
+### Delete value
+
+    $data->delete('info.home.address');
+    
+    // Array style
+    unset($data['info.home.address']);
+
+### Multiple values at once:
+
+    $data->delete([
+        'user.lastname', 'info.home.address'
+    ]);
+
+### Clear values
+
+Delete all values from path:
+
+    $data->clear('info.home');
+    
+If path doesn't exist, create an empty array on it
+
+    $data->clear('info.home.rooms', true);
+
+Clear multiple paths at once:
+
+    $data->clear([
+        'user', 'info.home'
+    ]);
+