README

Read and write PHP config files with array or primitives data. Provide building blocks for a PHP native schema definition.

Supported formats

Leading and trailing spaces are ignored Opening and closing PHP tags are optional

Classic Horde Format

<?php
$conf['critical_value'] = 'Code before the header is not deleted on write and can act as a default for missing values in the actual config';
/* Some Config File Header*/
$conf['critical_value'] = 'Everything in here is overwritten on write';
$conf['auth']['transparent'] = true;
$other_var = 'debug';
/* Some Config File Footer*/
$conf['critical_value'] = 'Code after the footer is not overwritten on write and can act as a temporary override to admin-provided config';

Random Array Format

<?php
$data = [

  'key' => 'value',
  'key2' => [
               'nested => 'values', 
               'of_any' => ['possible' =>  'format' ],

            ],
];

Primitives

<?php

$debug = true;
$max_errors = 23;
$initial_application_page = 'News';
?>

Usage

See Unit Tests

Schema Definition

Applications have expectations with regards to PHP config files but free form PHP allows to undermine these expectations. The ConfigurationSchema classes provide building blocks for

• Rendering defaults into a new or incomplete configuration file
• generating UIs from Code without external schema languages like XML, Yaml, etc
• versioning and upgrading configuration files in a defined fashion.

Schema definitions always begin with a root element ConfigurationSchema. Every subsequent element is either a LeafElement or a ParentElement. LeafElements hold primitive values such as integer, string, float, boolean or null. A special type of leaf elements are void elements which do not emit anything to the configuration file but provide metadata for display in a UI assembled from the schema. ParentElements hold levels of array keys