Reading Configurations

Reading Configurations

Phalcon\Config is a component used to convert configuration files of various formats (using adapters) into PHP objects for use in an application.

Values can be obtained from Phalcon\Config as follows:

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Factory

Loads Config Adapter class using adapter option, if no extension is provided it will be added to filePath

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Native Arrays

The first example shows how to convert native arrays into Phalcon\Config objects. This option offers the best performance since no files are read during this request.

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If you want to better organize your project you can save the array in another file and then read it.

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File Adapters

The adapters available are:

Class / Description
Phalcon\Config\Adapter\Ini / Uses INI files to store settings. Internally the adapter uses the PHP function parse_ini_file.
Phalcon\Config\Adapter\Json / Uses JSON files to store settings.
Phalcon\Config\Adapter\Php / Uses PHP multidimensional arrays to store settings. This adapter offers the best performance.
Phalcon\Config\Adapter\Yaml / Uses YAML files to store settings.

Reading INI Files

Ini files are a common way to store settings. Phalcon\Config uses the optimized PHP function parse_ini_file to read these files. Files sections are parsed into sub-settings for easy access.

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You can read the file as follows:

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Merging Configurations

Phalcon\Config can recursively merge the properties of one configuration object into another. New properties are added and existing properties are updated.

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The above code produces the following:

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There are more adapters available for this components in the Phalcon Incubator

Nested Configuration

You may easily access nested configuration values using the Phalcon\Config::path method. This method allows to obtain values, without caring about the fact that some parts of the path are absent. Let’s look at an example:

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The following example shows how to create usefull facade to access nested configuration values:

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Injecting Configuration Dependency

You can inject your configuration to the controller allowing us to use Phalcon\Config inside Phalcon\Mvc\Controller. To be able to do that, you have to add it as a service in the Dependency Injector container. Add following code inside your bootstrap file:

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Now in your controller you can access your configuration by using dependency injection feature using name config like following code: