159 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			159 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| Dot Access Data
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| ===============
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| 
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| [](https://packagist.org/packages/dflydev/dot-access-data)
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| [](https://packagist.org/packages/dflydev/dot-access-data)
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| [](LICENSE)
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| [](https://github.com/dflydev/dflydev-dot-access-data/actions?query=workflow%3ATests+branch%3Amain)
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| [](https://scrutinizer-ci.com/g/dflydev/dflydev-dot-access-data/code-structure/)
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| [](https://scrutinizer-ci.com/g/dflydev/dflydev-dot-access-data)
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| 
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| Given a deep data structure, access data by dot notation.
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| 
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| 
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| Requirements
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| ------------
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| 
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|  * PHP (7.1+)
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| 
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| > For PHP (5.3+) please refer to version `1.0`.
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| 
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| 
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| Usage
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| -----
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| 
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| Abstract example:
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| 
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| ```php
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| use Dflydev\DotAccessData\Data;
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| 
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| $data = new Data;
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| 
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| $data->set('a.b.c', 'C');
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| $data->set('a.b.d', 'D1');
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| $data->append('a.b.d', 'D2');
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| $data->set('a.b.e', ['E0', 'E1', 'E2']);
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| 
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| // C
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| $data->get('a.b.c');
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| 
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| // ['D1', 'D2']
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| $data->get('a.b.d');
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| 
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| // ['E0', 'E1', 'E2']
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| $data->get('a.b.e');
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| 
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| // true
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| $data->has('a.b.c');
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| 
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| // false
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| $data->has('a.b.d.j');
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| 
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| 
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| // 'some-default-value'
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| $data->get('some.path.that.does.not.exist', 'some-default-value');
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| 
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| // throws a MissingPathException because no default was given
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| $data->get('some.path.that.does.not.exist');
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| ```
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| 
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| A more concrete example:
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| 
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| ```php
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| use Dflydev\DotAccessData\Data;
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| 
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| $data = new Data([
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|     'hosts' => [
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|         'hewey' => [
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|             'username' => 'hman',
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|             'password' => 'HPASS',
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|             'roles'    => ['web'],
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|         ],
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|         'dewey' => [
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|             'username' => 'dman',
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|             'password' => 'D---S',
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|             'roles'    => ['web', 'db'],
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|             'nick'     => 'dewey dman',
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|         ],
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|         'lewey' => [
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|             'username' => 'lman',
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|             'password' => 'LP@$$',
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|             'roles'    => ['db'],
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|         ],
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|     ],
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| ]);
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| 
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| // hman
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| $username = $data->get('hosts.hewey.username');
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| // HPASS
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| $password = $data->get('hosts.hewey.password');
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| // ['web']
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| $roles = $data->get('hosts.hewey.roles');
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| // dewey dman
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| $nick = $data->get('hosts.dewey.nick');
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| // Unknown
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| $nick = $data->get('hosts.lewey.nick', 'Unknown');
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| 
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| // DataInterface instance
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| $dewey = $data->getData('hosts.dewey');
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| // dman
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| $username = $dewey->get('username');
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| // D---S
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| $password = $dewey->get('password');
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| // ['web', 'db']
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| $roles = $dewey->get('roles');
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| 
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| // No more lewey
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| $data->remove('hosts.lewey');
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| 
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| // Add DB to hewey's roles
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| $data->append('hosts.hewey.roles', 'db');
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| 
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| $data->set('hosts.april', [
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|     'username' => 'aman',
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|     'password' => '@---S',
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|     'roles'    => ['web'],
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| ]);
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| 
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| // Check if a key exists (true to this case)
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| $hasKey = $data->has('hosts.dewey.username');
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| ```
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| 
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| `Data` may be used as an array, since it implements `ArrayAccess` interface:
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| 
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| ```php
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| // Get
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| $data->get('name') === $data['name']; // true
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| 
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| $data['name'] = 'Dewey';
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| // is equivalent to
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| $data->set($name, 'Dewey');
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| 
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| isset($data['name']) === $data->has('name');
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| 
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| // Remove key
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| unset($data['name']);
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| ```
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| 
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| `/` can also be used as a path delimiter:
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| 
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| ```php
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| $data->set('a/b/c', 'd');
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| echo $data->get('a/b/c'); // "d"
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| 
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| $data->get('a/b/c') === $data->get('a.b.c'); // true
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| ```
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| 
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| License
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| -------
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| 
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| This library is licensed under the MIT License - see the LICENSE file
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| for details.
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| 
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| 
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| Community
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| ---------
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| 
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| If you have questions or want to help out, join us in the
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| [#dflydev](irc://irc.freenode.net/#dflydev) channel on irc.freenode.net.
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